Question

the trains would be delayed,if the rain ___stop.(did not, do not, does not)​

Answer 1

the train would be delayed if the rain had stop

Answer 2

There are three main kinds of 'if' conditional clauses.

Explanation:

• "The trains would be delayed, if the rain did not stop." This is the answer.
• 'If' conditional clauses are of three kinds and they have a set of rules to be followed.
• In the sentence given, one part of the clause has 'would + verb' then the 'if' clause should be in simple past tense.
• So according to this rule, as we have 'would be delayed' in one clause, then the other 'if' clause would take 'did not' (simple tense).