subject verb agreement

[Unregistered]

i just want to know what is tha correct form of the verb to be used if the subject in the sentence uses 'a group'.ex.a group of pupils is playing.do i have to use the singular or the plural form? thanks

 

[paochai01]

i just want to know what is tha correct form of the verb to be used if the subject in the sentence uses 'a group'.ex.a group of pupils is playing.do i have to use the singular or the plural form? thanks

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A collective noun takes a singular verb when it's considered to be only one unit.
However, it would require a plural verb when each individual of the group acts separately.
Therefore:
A group of pupils is playing. - correct