500
Compare type 1, 2 and 3 conditionals in A)Usage and B)tense
Explain when you use each and the verb tenses involved in making them. For example, "type 4: A) is used when something is not true in the past. B) main clause (would have +past participle), if-clause (past perfect/past perfect continuous)
type 1: A) generally true B) main clause (present), if-clause (present)
type 2: can come true in the future or is true B) main clause (future), if-clause (present)
type 3: A) imaginary situation, untrue to present B) main clause (would + infinitive or first form), if-clause (past/were with to be)