Do we hyphenate adjectives including numbers?












0














What is the correct way of saying this:





  • I have completed three years of a six years course.

  • I have completed three years of a six-years course?




And also, should it be 'six year' or 'six years' here?










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  • "A six-year course". Measure expressions like this have a singular noun base, hence "year", not "years". As Andrew Leach says in his answer, six-year" is a compound adjective, a single word, and hence should be hyphenated.
    – BillJ
    2 days ago
















0














What is the correct way of saying this:





  • I have completed three years of a six years course.

  • I have completed three years of a six-years course?




And also, should it be 'six year' or 'six years' here?










share|improve this question









New contributor




user329952 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.




















  • "A six-year course". Measure expressions like this have a singular noun base, hence "year", not "years". As Andrew Leach says in his answer, six-year" is a compound adjective, a single word, and hence should be hyphenated.
    – BillJ
    2 days ago














0












0








0


1





What is the correct way of saying this:





  • I have completed three years of a six years course.

  • I have completed three years of a six-years course?




And also, should it be 'six year' or 'six years' here?










share|improve this question









New contributor




user329952 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











What is the correct way of saying this:





  • I have completed three years of a six years course.

  • I have completed three years of a six-years course?




And also, should it be 'six year' or 'six years' here?







adjectives grammatical-number






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user329952 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question









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user329952 is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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share|improve this question




share|improve this question








edited 2 days ago









Andrew Leach

79.5k8150256




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asked 2 days ago









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  • "A six-year course". Measure expressions like this have a singular noun base, hence "year", not "years". As Andrew Leach says in his answer, six-year" is a compound adjective, a single word, and hence should be hyphenated.
    – BillJ
    2 days ago


















  • "A six-year course". Measure expressions like this have a singular noun base, hence "year", not "years". As Andrew Leach says in his answer, six-year" is a compound adjective, a single word, and hence should be hyphenated.
    – BillJ
    2 days ago
















"A six-year course". Measure expressions like this have a singular noun base, hence "year", not "years". As Andrew Leach says in his answer, six-year" is a compound adjective, a single word, and hence should be hyphenated.
– BillJ
2 days ago




"A six-year course". Measure expressions like this have a singular noun base, hence "year", not "years". As Andrew Leach says in his answer, six-year" is a compound adjective, a single word, and hence should be hyphenated.
– BillJ
2 days ago










1 Answer
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oldest

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John Lawler calls this the eleven-year-old boy rule.




When a noun modifier consists of more than one word, it goes after the noun it modifies.

When a noun modifier consists of only one word, it goes before the noun it modifies.




Mnemonic: an eleven-year-old boy versus a boy eleven years old



A single word (which includes a hyphenated word, as here) is an adjective; a multi-word phrase is an adjectival phrase. Adjectives are not inflected for number, and will always be singular — hence "eleven-year". It doesn't matter whether you are talking about a seven-year itch or an eleven-year-old boy, it's always year before the noun. You might get an itch every seven years, where the adjectival phrase does have a plural.



In your example, six-year is a single adjective going before the noun it modifies. It should be hyphenated because it's a single word, and it should be singular because adjectives are always singular.






share|improve this answer























  • I don't know whether I'd call it a single word. You're not going to find it in any dictionaries. And with things like under-the-radar, the spelling will change depending on whether it's an attribute or predicate adjective, which is a really weird property for a "word" to have.
    – Peter Shor
    2 days ago












  • I'm very happy for others to write a better answer. This question seems to be a good one to make the canonical dupe-target.
    – Andrew Leach
    2 days ago











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1 Answer
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1 Answer
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active

oldest

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1














John Lawler calls this the eleven-year-old boy rule.




When a noun modifier consists of more than one word, it goes after the noun it modifies.

When a noun modifier consists of only one word, it goes before the noun it modifies.




Mnemonic: an eleven-year-old boy versus a boy eleven years old



A single word (which includes a hyphenated word, as here) is an adjective; a multi-word phrase is an adjectival phrase. Adjectives are not inflected for number, and will always be singular — hence "eleven-year". It doesn't matter whether you are talking about a seven-year itch or an eleven-year-old boy, it's always year before the noun. You might get an itch every seven years, where the adjectival phrase does have a plural.



In your example, six-year is a single adjective going before the noun it modifies. It should be hyphenated because it's a single word, and it should be singular because adjectives are always singular.






share|improve this answer























  • I don't know whether I'd call it a single word. You're not going to find it in any dictionaries. And with things like under-the-radar, the spelling will change depending on whether it's an attribute or predicate adjective, which is a really weird property for a "word" to have.
    – Peter Shor
    2 days ago












  • I'm very happy for others to write a better answer. This question seems to be a good one to make the canonical dupe-target.
    – Andrew Leach
    2 days ago
















1














John Lawler calls this the eleven-year-old boy rule.




When a noun modifier consists of more than one word, it goes after the noun it modifies.

When a noun modifier consists of only one word, it goes before the noun it modifies.




Mnemonic: an eleven-year-old boy versus a boy eleven years old



A single word (which includes a hyphenated word, as here) is an adjective; a multi-word phrase is an adjectival phrase. Adjectives are not inflected for number, and will always be singular — hence "eleven-year". It doesn't matter whether you are talking about a seven-year itch or an eleven-year-old boy, it's always year before the noun. You might get an itch every seven years, where the adjectival phrase does have a plural.



In your example, six-year is a single adjective going before the noun it modifies. It should be hyphenated because it's a single word, and it should be singular because adjectives are always singular.






share|improve this answer























  • I don't know whether I'd call it a single word. You're not going to find it in any dictionaries. And with things like under-the-radar, the spelling will change depending on whether it's an attribute or predicate adjective, which is a really weird property for a "word" to have.
    – Peter Shor
    2 days ago












  • I'm very happy for others to write a better answer. This question seems to be a good one to make the canonical dupe-target.
    – Andrew Leach
    2 days ago














1












1








1






John Lawler calls this the eleven-year-old boy rule.




When a noun modifier consists of more than one word, it goes after the noun it modifies.

When a noun modifier consists of only one word, it goes before the noun it modifies.




Mnemonic: an eleven-year-old boy versus a boy eleven years old



A single word (which includes a hyphenated word, as here) is an adjective; a multi-word phrase is an adjectival phrase. Adjectives are not inflected for number, and will always be singular — hence "eleven-year". It doesn't matter whether you are talking about a seven-year itch or an eleven-year-old boy, it's always year before the noun. You might get an itch every seven years, where the adjectival phrase does have a plural.



In your example, six-year is a single adjective going before the noun it modifies. It should be hyphenated because it's a single word, and it should be singular because adjectives are always singular.






share|improve this answer














John Lawler calls this the eleven-year-old boy rule.




When a noun modifier consists of more than one word, it goes after the noun it modifies.

When a noun modifier consists of only one word, it goes before the noun it modifies.




Mnemonic: an eleven-year-old boy versus a boy eleven years old



A single word (which includes a hyphenated word, as here) is an adjective; a multi-word phrase is an adjectival phrase. Adjectives are not inflected for number, and will always be singular — hence "eleven-year". It doesn't matter whether you are talking about a seven-year itch or an eleven-year-old boy, it's always year before the noun. You might get an itch every seven years, where the adjectival phrase does have a plural.



In your example, six-year is a single adjective going before the noun it modifies. It should be hyphenated because it's a single word, and it should be singular because adjectives are always singular.







share|improve this answer














share|improve this answer



share|improve this answer








edited 2 days ago

























answered 2 days ago









Andrew Leach

79.5k8150256




79.5k8150256












  • I don't know whether I'd call it a single word. You're not going to find it in any dictionaries. And with things like under-the-radar, the spelling will change depending on whether it's an attribute or predicate adjective, which is a really weird property for a "word" to have.
    – Peter Shor
    2 days ago












  • I'm very happy for others to write a better answer. This question seems to be a good one to make the canonical dupe-target.
    – Andrew Leach
    2 days ago


















  • I don't know whether I'd call it a single word. You're not going to find it in any dictionaries. And with things like under-the-radar, the spelling will change depending on whether it's an attribute or predicate adjective, which is a really weird property for a "word" to have.
    – Peter Shor
    2 days ago












  • I'm very happy for others to write a better answer. This question seems to be a good one to make the canonical dupe-target.
    – Andrew Leach
    2 days ago
















I don't know whether I'd call it a single word. You're not going to find it in any dictionaries. And with things like under-the-radar, the spelling will change depending on whether it's an attribute or predicate adjective, which is a really weird property for a "word" to have.
– Peter Shor
2 days ago






I don't know whether I'd call it a single word. You're not going to find it in any dictionaries. And with things like under-the-radar, the spelling will change depending on whether it's an attribute or predicate adjective, which is a really weird property for a "word" to have.
– Peter Shor
2 days ago














I'm very happy for others to write a better answer. This question seems to be a good one to make the canonical dupe-target.
– Andrew Leach
2 days ago




I'm very happy for others to write a better answer. This question seems to be a good one to make the canonical dupe-target.
– Andrew Leach
2 days ago










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