If either of my brothers wins the race, I will be happy.

English as a Second Language English Vocabulary, Grammar and Idioms
1

Hi!

If either of my brothers … the race, I will be happy.

a) wins
b) win

Which version(s) is/are correct? If there is more than one correct answer,
which one is the most correct from strict grammatical point of view?

2

If either of my brothers wins the race, I will be happy.

TOEIC listening, talks: Promoting a theme park

3

Dear Teacher!

Is plural verb “win” informally acceptable in this case?

4

I would use ‘win’ there because ‘either of’ indicates one person winning.

5

Dear DEACHERS!!!

    Is plural verb also acceptable and considered more informal in this case?
   
Many thanks...
6

That is also possible, if you wish to refer to the plural ‘brothers’, rather than the singular ‘either (one) of’.