1. I have a staff who works for me.

Question

2. I have a staff who work for me.
3. I have a staff of one who works for me.
4. I have a staff of ten who work for me.
5. I have ten staff who work for me.
6. I have ten staffs who works for me.
7. I have ten step members who work for me.
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The use of 'staff' is a little complicated. Would you check the sentences? Which ones are grammatical? Let me know the correct use of the word 'staff.' Thank you.

Answer 1

1 is questionable.

2-5 are just fine!

6-7 are incorrect.