Quiz playing is a wonderful way to increase your knowledge of English as a Second Language. Remember that all of our ESL quizzes have titles that are both friendly and technical at the same time… In the case of this quiz you might like to tell your friends about “What If??” but no doubt your teachers will talk about the “Past Tense quiz”! If you hear a technical term and you want to find a quiz about the subject then just look through the list of quiz titles until you find what you need.
Past tenses express an action that has happened or a state that previously existed.
Someone once said that the study of History is an endless exploration of 'What if...?'. ('What if Britain had been conquered by Napoleon, or Hitler?' 'What if JF Kennedy, or Martin Luther King, had not been assassinated?' 'How would things be different?')
As in many languages, there are established sequences of tenses for the verbs in such situations. How smart are you at choosing the right past tenses?
Note what parts of the verb construction have to be there, and in what order they come. If we leave aside the meaning, you can take away the 'never'; if you also peel away the passive ('been'), you are left with ' ... would have started', which is perhaps rather more manageable.
We can get rid of the 'been' anyhow: ' ... WW3 would never have started' is fine as a clause, if not as a historical idea. In this case the War itself becomes active, rather than passive ('been started'); we have already considered which country might have been to blame, so that passive is not really necessary.