某件事有可能发生，但你不确定的时候，用 might 或 may + 动词原形。两个词意思一样（may 稍微正式一点）。不加 to，也不加 -s。
might / may = 也许
I might go to the party. (I'm not sure yet)
She may be late.
It might rain this afternoon.
Not "I might to go to the party." — say "I might go to the party.". might 后面不加 to：就是 might + 动词原形。
试一试: Take an umbrella, it ___ rain later. (might / mights / might to) 答案: might — might 永远不变形，也不接 to：it might rain。"Mights" 给 might 加了个不该有的 -s，"might to" 又加了个不需要的 to。
might not / may not = 也许不
表示可能不会发生，用 might not 或 may not + 动词原形。
I might not come tonight.
She may not know the answer.
They might not have time.
试一试: I'm not sure about tonight. I ___ come. (might not / don't might / might not to) 答案: might not — 表示可能不会，用 might not + 动词原形：I might not come。"Don't might" 不是真实存在的形式，而且它后面也不加 to。
确定（will）还是只是可能（might）？
当你认为某件事一定会发生，用 will。当只是有可能，你不确定，用 might / may。
It will rain. (I think it definitely will.)
It might rain. (Possible, but I'm not sure.)
She will pass. (I'm confident) / She might pass. (not sure)
试一试: Hiroshi 看着时刻表。火车总是 9 点发车，从来不晚点。他完全确定。 哪个符合他确定的情况？ (The train will leave at 9. / The train might leave at 9.) 答案: The train will leave at 9. — 他完全确定（火车从不晚点），所以用 will：The train will leave at 9。"Might leave" 会表示他不确定，但他其实很确定。
试一试: Amina 还没决定去不去派对。也许去，也许不去。她真的不确定。 哪个符合她不确定的情况？ (She might go to the party. / She will go to the party.) 答案: She might go to the party. — 她还没决定，也不确定，所以用 might：She might go。"She will go" 会表示这是确定的事，但她其实还没决定。