Question

1. I want to help Mohamed look for my school's gym.

2. I want to help Mohamed look for my school gym.

3. I want to help Mohamed look for the gym of our school.

4. I want to help Mohamed look for the gym of my school.
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Which ones are grammatical? Can we use #1?

Answer 1

#1 is best. #2 is okay, but is more colloquial. #3 is clumsy. The same for #4.