A. Should he decides to cancel, I will inform you. B. Should he decides to cancel, I would inform you. C. Should he decides to cancel, there is a cancelation fee. D. Should he decides to cancel, there was a cancelation fee.
1. Which of the above sentences are possible? 2. How are the possible sentences different in meaning? 3. Can we also say "Should he decided..."?
E. Had he decided to cancel, I will inform you. F. Had he decided to cancel, I would inform you. G. Had he decided to cancel, I would have informed you. H. Had he decided to cancel, there is a cancelation fee. I. Had he decided to cancel, there was a cancelation fee.
4. Which of the above sentences are possible? 5. How are the possible sentences different in meaning? 6. Can we also say "Has he decided..." or "Have you decided..."?
Top answer
A. should he decide (correct) B. incorrect C.
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'Has he decided to cancel, there is a cancellation fee' with 'has' in the beginning is never correct in conditional structure. 'Had' is the only one acceptable. Please confirm.
If I've understood you correctly, 'should' normally takes the first or real conditional, and 'had', the third conditional. Please confirm.
As far as I know, most grammar textbooks only teach about 'if' conditionals and only a few include the alternate forms like 'should' and 'had'. I wouln't learn about this if not for this forum.