Complete the third conditional sentences with the correct forms of the verbs.

Choose the correct option.

If Alex had worked more, he [could have|could have had|can have|could] more money.

David [had never done|never did|would never do|would never have done] that if he had known what would happen.

If I [would be|would have been|had been|were] you, I would never have moved to a big city.

Suppose you had started the project earlier, [would you finish|had finished|would you have finished|finished] on time?