1. The committee has ten members.

2. The committee have ten members.
[Which one is grammatical? Are both okay?]

3. My family is all very well.
4. My family are all very well.
[Which one is grammatical? ]

5. His family lives in London.
6. His fmaily live in London.
[Which one is grammatical?]

1 answer

All of those subjects are singular and take the singular verb.