Chia đúng dạng từ trong ngoặc

1. He intends (stay).....there for at least three years.
2.If you use robots to do the housework, you(become)..... lazy.
3.Chess(play).... for around two thousand years.
4. If there(be).... more trees in this area , the air would be fresher.
5. This time tomorrow i (chat).... with my cousin in Sydney on Skype