1. My son is 1.5 year old/ years old.
2. It costs 1.9 dollar/dollars.
So, which one is correct?
so - 1. My son is 1/5 years old.
2. It costs 1.9 dollars.
Now if they were singular
1 My son is 1 year old
2 It cost 1 dollar.
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AWS:well, as far as my knowledge is concerned, I would say:
1. My son is 1.5 year old.
2. It costs 1.9 dollar.
I was told plural is when the number is higher than 2 but I am not sure.
First, let me say I am neither a native speaker, nor an expert in the English language.
Second: I post here an excerpt from an article where the rule you mentioned (but which states that numbers greater than 1 or smaller than -1 must be followed by plural verbs) is called into question:
The prescription for agreement between a value and its unit of measurement has always struck me as a hyper-extension of logic that defies observation. Although I am an editor by profession, I recently had the enriching experience of having my work secondedited. On a page here and there, the editor changed units of measurement from plural to singular, stating that if the value is greater than 1 or less than -1, then the unit should be plural. If the decimal value is between 1 and -1 (inclusive), then the value is singular. So, she revised "0.54 ohms" to "0.54 ohm," for example.The author goes on with an experiment aimed at demonstrating that native speakers (in his experiment, engineers ans measurement raised in the USA) will generally use the plural with any decimal number, irrespective of that prescriptive rule.
If this may help, I also post the link to an old thread of mine where one of our experts here wrote that "0.5 hectares" is idiomatic http://www.englishforums.com/English/ProperWords2/dnchx/Post.htm and to another thread you might find useful: http://www.englishforums.com/English/125MillionS/zvnjk/post.htm
I hope somebody will comment on this, because I too am interested in this discussion. Thanks for raising this question!
Jeannie1Both should be plural. Only if you were writing about 1 only, would it be singular.
Grammar GeekNo. My son is one and half years old. It cost 1.9 dollars.I would say it the same way. I agree with GG, I mean.
No, wait. I don't agree that anything higher than 1 is plural. I would say "anything that is not 1".
zero point five grams.
one point five grams.
half a gram.
one fourth of a gram.
gilysse1. My son is 1.5So, to sum everything up:
1. My son is one and a half years old.
2. It costs one point nine dollars.
(That isn't a very idiomatic way of stating a price, however. We would usually say something such as "a dollar ninety".)
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