與現在相反
條件句:過去式(were)
主句:would+動詞原形
If I were you I would not be such scheming.
與将來相反
條件句:should/were to+動詞原形
主句:would/should/could/might+動詞原形
If it should be clear day tomorrow,I would bath my dog.
與過去相反
條件句: had +動詞過去分詞
主句:would have +動詞過去分詞
If I had known you are such scheming,I would not have trusted you.
Wish
對現在的願望: wish +動詞過去式
I wish my neck don’t ached.
對過去的願望wish + had/would have +動詞過去分詞
I wish I had protected my neck from indisposition.
對将來的願望: wish + should/would/could/might/ +動詞原形
I wish my neck could cured.
demand, suggest,insist, order...+should +動詞原形
有話要說...