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.