category/categories 1 and 2

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Tedwonny

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Hello,

I read two different articles the other day which reminded me of a question I've wanted to ask for so long.

Do you say category A and B or categories A and B?
Lots of similar ones like: group 1, 2 and 3 or groups 1,2 and 3?

Thanks a lot!
 

billmcd

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Hello,

I read two different articles the other day which reminded me of a question I've wanted to ask for so long.

Do you say category A and B or categories A and B?
Lots of similar ones like: group 1, 2 and 3 or groups 1,2 and 3?

Thanks a lot!

Catagories and Groups, but you will hear both singular and plural in AmE.
 

Tedwonny

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So, that means both are possible, right?

How about the others? what do you think ?
Thanks a lot
 

spongie

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Do you say category A and B or categories A and B?
Lots of similar ones like: group 1, 2 and 3 or groups 1,2 and 3?

I think that both are in use.

category A and B = we can also say "category A and category B" but there's no need to repeat it so we use "category A and B"

Same story with the groups.

But, shouldn't there be a colon when we use plural form?:
- categories: A and B,
- groups: 1, 2 and 3,
 
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Rover_KE

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But, shouldn't there be a colon when we use plural form?:
- categories: A and B,
- groups: 1, 2 and 3,

No, there shouldn't.

Bill's answer in post #4 is equally valid in BE, too.

Rover
 
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