Have/has ставится, когда задается вопрос в Present Perfect Simple или в Present Perfect Progressive. Также, have или has может стоять в начале предложения, во о наличии чего-либо. Пример: 1. Have you ever been in Moscow? 2. Have you got any sweets? Различие в том, как будет задаваться вопрос: если has got, то Has he got a parrot?, а если же has, то Does he have a parrot? То же самое касается формы have.
Jim plays football every Saturday. — Джим играет в футбол по субботам. (это его привычка, действие происходит регулярно)
Jim is now playing football so he is not able to talk to you at the moment. — Джим сейчас играет в футбол, поэтому не может сейчас с вами поговорить. (именно в данный момент Джим занят футболом, который еще не закончился)
She is not working at the moment. — Она сейчас не работает.
I am reading a novel by Fedor Dostoevsky. — Я читаю роман Федора Достоевского. (подразумевается, что я начал его читать, но еще не закончил)
She is constantly swearing with her mother. — Она постоянно ругается с матерью.
They are moving to the other city. — Они переезжают в другой город.
Two classmates, who didn't meet ecah other for long time met at the railway station. One of them was fat, another was lean. They were very happy to see each other, lean classmate presented his wife and son to his friend. They began to remember school days. When they started to talk about their present standing, they reveled that fat classmate has a high rank. Relationship lean friend to fat has changed after this words. Lean friend started to fatter to his fat friend. It was very unpleasantly to fat friend and he tried to rein up his lean friend, but lean classmate continued demean and they were gone.
Различие в том, как будет задаваться вопрос: если has got, то Has he got a parrot?, а если же has, то Does he have a parrot? То же самое касается формы have.