Level 1
There be (not)...
主詞 sound/feel/ taste/look/smell (like):感官動詞
What is/does... like? ..
Would you like...? ...
How about/What about...?
How long/soon/often...?
too...+for sb./sth.+to
(not) + ... + enough + (...) + to do sth.
get+V-ed...
Once.....
Level 2
Whats the matter (with)...?
It doesnt matter (if/whether)...
(It is) no wonder (that).....
It takes (sb.)+時間段+to+V....
Why not...?
What do you think of/about...?
Will/Would you (please)...?
as ...as possible
...as soon as...
so+助動詞+主詞
It be +時間段+ before...
It be + not long before...
及物動詞+人/物+形容詞
Level 3
unless...
whether... or.....
What/How...!
Do/Would you mind...?
It+adj.+of/for sb.+to v. ...
I dont think/believe/suppose that ...
Its time (for sb.) to do sth....
by the time...
Level 4
I wish…
or/otherwise...
more than...
比較級+than...
Im afraid (that)...
It is obvious/clear that...
It is a pity (shame/surprise...) that...
How (What/When...)+to do...? .
There is no+名詞+(in)+doing
sb.+must/can/could/may/might/need/ should/ought to+have+過去分詞...
Level 5
so/such...that... .
On the one hand, ... on the other hand...
both... and... .
prefer to... rather than...
The reason why... is/was that...
even if/though...
have... do/doing/done...
How... getting along/on...?
It is/has been+...+since...
Level 6
be (not) supposed to...
Suppose/Supposing (that)...
It seems/seemed that/as if...
Its (high/about) time that...
do nothing but do
no matter+疑問詞?
Not until...
Hardly/Scarcely... when/before...
What if...?
If only...