There are some mistakes in the sentences. some sentences are correct. choose the sentences that have mistak. There are some mistakes in the sentences. Some sentences are correct. Choose the sentences that have mistakes.

1) I might to play football or go to the cinema with Paul.
2) You can find the correct definition of the words.
3) I have done a mistake.
4) They are going to research some interesting facts about Britain.
5) How many countries does the UK consist of?
6) They say that ghosts lives in old castles.
7) The week I spent in Northern Ireland was the best adventure of the summer. Помогите пжл

Неправильно - 1),3),6) а правильно 2),4),5),7).