Hi! I'm staying in Japan for two months and I'm trying really hard to learn as much as possible while I'm here. I was wondering if anyone with great knowledge in the language could help me correct these sentences:

The apple is red - Ringo wa akai desu

It is John's apple - John no ringo desu

I give John the apple - Watashi wa John ni ringo wo agemasu.

We give him the apple - Watashi tachi wa kare ni agemasu.

He gives it to John - Kare wa sore wo john ni agemasu .

She gives it to him - Kanojo wa sore wo kare ni agemashita.

Is the apple red? - Ringo wa akai desuka?

The apples are red - Ringo wa akai desu .

I must give it to him - Watashi wa kare ni sore wo agenakerebanarimasen.

I want to give it to her - Watashi wa kanojo ni sore wo agetai desu .

I'm going to know tomorrow - Watashi wa ashita sore wo shirimasu .

I can't eat the apple - Watashi wa ringo ga tabemasen.

Thank you so much!

Best regards

Johan