Когда пишется глагол have got/haven"t got? has got/hasn"t got? cancan"t?

1. We use 'have got' to denote possession of something. We use "haven't got" to negate the fact of possession. I have got an apple. I haven't got any apples.

2. We use 'has got' to denote possession of something in the 3rd person singular (when the subject is he/she/it). We use "hasn't got" to negate the fact of possession in the 3rd person singular (when the subject is he/she/it). Olga has got a pen. Luigi hasn't got a rubber.

3. We use 'can' to denote some physical ability to do something. We use "can't" to negate such a physical ability to do something. I can swim. She can't sing.