1. propose, command, request, desire, insist, require, decide, promise, arrange, ask, move, consent, determine, recommend, advise, intend, beg, resolve决意¸ argue争论, maintain主张，deserve值得提及，prefer, decree裁决，vote, urge, instruct命令指示，advocate提倡，persuade, dictate命令，appoint命令，provide规定，specify指定，persist, permit, petition请愿，stipulate规定等意念动词，祈使动词或态度动词后的宾语从句中，谓语动词用 should + 动词原形。
注意：当suggest是暗示，表明, insist 是坚决认为时
He insisted that he was not involved in the case. 他坚持认为自己同那案子牵连。
When asked why he declined our invitation, he suggested that he was not on good terms with the director.
2. advice, demand, order, necessity, resolution决心, pay, decision, proposal, requirement, suggestion, idea, recommendation, preference, request, plan, motion等名词后的主语从句和表语从句中的谓语动词 should + 动词原形。
3. 虚拟语气用在important, necessary, imperative, natural, urgent, essential, appropriate, desirable, insistent, obligatory, probable, vital, advisable, better, keen preferable, possible, incredible, funny可笑的，pitiful可惜的，deplorable可悲的，imperative迫切的，resolved决心的，eager, anxious, concerned, ridiculous可笑的，unthinkable, 以及短语 no wonder, a pity, not right 等可以构成 It is + 形容词（名词） + that 句型， 其后的的句子用 should + be.
注意：It is amazing(add, strange, surprising, wrong, astonishing, inconceivable, a pity, a shame, a thousand pities, to be regretted), I am surprised(sorry)和I regret 等后的句子中should 不可以省略。
4. however 后直接加形容词
5. 形容词前加the 成为名词。
6. the + 职业’s ,the tailor’s , the barber’s, the photographer’s.
7. They generally go abroad for their holidays, but this year they are staying at home. 进行时表示一反常态。
8. 现在进行时：和他人有约在前，打算很快要做的事情。
9. What are you doing this evening? I am staying at home.
What are you thinking about? You look rather worried?
I was doing my homework before I went to bed. 一直在做谋事。
10. would rather(情态动词) do sth. have done (对过去)。
Would rather (虚拟) (that) had done（对过去） did (对现在)
11. 到装，Everything taken into consideration, his plan seems to be more workable. Weather permitting, we’ll go there on foot.
12. wish had done, wish did , wish would
13. 表询问，希望，要求+ of ， want , ask, inquire, demand, require, expect
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