Unit 4Helping people around the worldTaskPerfect tense in Subjunctive MoodListening for problems and causesGroup discussion: making suggestionsWriting a proposalPractice P127 D1南京一中 祖军武Perfect tense in Subjunctive Mood1) Model Verbs + have donemust have donemay/ might have done也许做过;肯定句或否定句might have done本来可能做而没做 ( 含责备意 ) ;肯定句can…have done can’t have donecould have done肯定句或否定句should/ought to have done本应该做而没做;肯定句shouldn’t/oughtn’t to have done ;否定句needn’t have done本不必做 ( 却做了 ) ;否定句had better have done当时最好做了某事 ( 含责备意 )would rather have done当时宁愿做了某事 ( 含后悔意 ) ;(* 反意疑问句 )一定做了某事;肯定句可能做过;否定句或疑问句可能已经 / 本可以做而没做;本不应该做却做了didn’t need to do 本不必做 ( 也没做 )1
You ________________ ( 一定没见过 ) me because it’s the first time I have been here
I’m sorry that I’m late
There was too much traffic on my way he