Starting a question with 'Could you' vs. 'Can you'?
20222
"Can you please" vs. "Could you please"
26531
Why do some questions not start with an auxiliary verb?
101965
Why should we use 'Did you come?' instead of 'Did you came?'?
14431
Might / May / Could / Would have been able to
142209
May vs Might in Sentence
49945
"start" and "begin", is there a difference?
157640
Present Perfect: Yes or No?
104327
What is the difference between "begin" and "start"?
57963
When should we use "can", "could", "will", "would"?
29914
What is the difference between  and ?
109074
"You are" vs. "you're" — what is the difference between them?
36633
Which is correct? "Did you know?" or "Do you know?"
76741
"Why couldn't" vs. "why couldn't you have"
7975
"You just can't" vs. "you can't just "
108590
Difference between 'can' and 'could'
33549
"Which" vs. "what" — what's the difference and when should you use one or the other?
25105
Suggestion phrased as a question