1 I'll do it all myself if they don't help - Я все сделаю сам, если они не помогут.
2 I would do it all myself if they didn't help - Я бы сделал все сам, если бы они не помогли.
3 I would have done it all myself if they hadn't helped - Я бы сделал все сам, если бы они не помогли.
2
1 The new equipment is still being installed.
2 The office was cleaned yesterday.
3 Are we allowed to park here?
3
1 applications
2 experience
3 customer
4 joint venture
5 mind