Complete the text with the correct form of the verbs in brackets.
I like my brother, but I _______(think) he has a problem.He ______(not sleep) much at the weekends because he _____(play) video games all day and ______(watch) TV all night.His friends_____(not see) him very often because he _______(stay) in his room and he ______(not go) outside.He ______(speak) to us on his mobile phone when he's hungry.I ______(bot know) if this is normal.Please help!