"I better not ask," vs "I had better not ask."
41021
I'd better vs I better
88730
can't have been vs. couldn't have been
59306
"than her" versus "than she"
105201
" could " vs. " could have "
83150
"I suggest you not go there" or "I suggest you to not go there"
42966
Difference between ''He wishes it didn't...'' and ''He wishes it wouldn't...''
124536
doesn't has to /have to
93445
Had it not been vs If it were not for
15081
"Not once he would" vs. "not once would he"
55692
When to use "cannot" versus "can't"?
20222
"Can you please" vs. "Could you please"
24044
When would you rather use one over the other?
72698
"Dare speak" vs. "dare to speak" vs "dares to speak"
49564
"wait more than" vs. "wait FOR more than"
90083
Usage of "rather than to"
133639
Is either "can" or "could" more polite?
36804
"I have never said" versus "I never said"