1.I'm sure (of that)
我对...(of后面是短语,不是that从句,sth)很确信.
2.I'm sure (that)...
我对...(从句)很确信.
3.I'm not sure (of that).
参见1.
4.I'm not sure whether/if...
我不知道是否会...
5.Perhaps/May be.
也许.
6.You can't...
你不能(表示 能力 上不能)
7.You mustn't...
你不能(表示 禁止)
8.If you...,you'll...
如果你...你就会...
9.You'd better not do it.
你最好不要做这件事.
10.Don't smoke!
禁止吸烟.(No smoking)
11.Don't be late!
不要迟到.
12.Look out!
当心!
13.Take care!
当心!(小心)
14.Be careful!
当心!(认真)
15.He can...
他可以...(表能力)
16.He may...
他可能..(表推测)
17.It is possible that...
(that从句的内容)很有可能
18.He wll...
He will...
他将要(也可以表示意愿)...
19.It seems(that)...
看起来似乎...
20.I believe that he is right.
我相信他是对的.
21.Can/Will/Could/Would you...for me?
你是否可以为我(做某事)?(口气逐渐婉转)
22.Will/Can/Could/Would you please...?
你是否可以.?(口气逐渐婉转)
23.May I have...?
我可以.(一般没有把have抽出来做句型吧)吗?
24.Please give me...
请把...给我.
25.Please pass me...
请把...给我.
26.Please stand in line up.
请站成一条直线.(估计是..)
27.Please hurry.
请快些.(个人觉得please be hurry会不会更好..)
28.No noise,please.
请不要发出噪声.
29.No smoking,please.
请不要吸烟.(这个语气很奇怪..前面一般是命令的..后面来个please)
30.Don't rush(hurry)/crowd.
不要推挤.
应该是rush(hurry)和crowd替换.rush后可加hurry也可不加.
或者是Don't hurry.另外意思,不要着急.
31.Please wait.请等待
Please wait here.请在这里等待.
Please wait a moment.请稍等一下.
32.Please wait(for)your turn.
请等到轮到你的时候.
for可加可不加.