A Hundred and One Rules in Arabic Grammar!

  1. The word ما ===============

The word ما has different meanings, depending on the context. It could mean "what," and in this case you are expected to have a demonstarative pronoun or a definite noun following it.

What is this?          ما هذا؟

What is his job?                     ما عملـُهُ؟

When the question word ** ما** is followed by a verb in the past tense, it changes its own function to a negation particle.

I did not eat at this restaurant. ما أکلتُ في هذا المطعم.