條件現在時由would/should+動詞原形構成(用于第一人稱)，或由would+動詞原形構成(用于其他人稱)。
肯定式： I would/I’d work/I should work
you would/you’d work等
否定式： I would not/wouldn’t work或
I should not/shouldn’t work
you would not/wouldn’t work等
疑問式： would/should I work?
would you work?等
否定疑問式： should I not/shouldn’t I work?
would you not/wouldn’t you work?等
這種形式用于：
(a)條件句中。
(b)would和should的特殊用法中。
(c)過去將來時。當主句的主要動詞是過去時的時候，從句中就必須用 would/should而不用 will/shall：
I hope(that) I will/shall succeed.
我希望我會成功。
I hoped(that) I would/should succeed.
我曾希望我會成功。
I know(that) he will be in time.
我知道他會趕得上的。
I knew(that) he would be in time.
我當時知道他會趕得上的。
He thinks(that) they will give him a visa.
他想他們會給他簽證。
He thought(that) they would give him a visa.
他本想他們會給他簽證。
I expect(that)the plane will be diverted.
我料想飛機會改變航線。
I expected(that)the plane would be diverted.
我本料想飛機會改變航線。