It doesn't take much to answer these questions. All you need are a few sentences translated from English into your target language.
Some of my favorites, with reasons, are below:
The apple is red.
It is John's apple.
I give John the apple.
We give him the apple.
He gives it to John.
She gives it to him.
These six sentences alone expose much of the language, and quite a few potential deal killers.
I must give it to him.
I want to give it to her.
