Why a reply should include "did"?
63353
Omitting a repeated verb
105806
Did + multiple bare infinitives in a question
34503
"What day is it today?" vs. "What day is today?"
90462
Marking comment as an answer?
42086
Do you really answer "How do you do?" with "How do you do?"
12421
Why do some people put an extra "DO" in a sentence?
119136
"done" vs "have done"
17796
"did shoot" vs "shot"
3237
Require a comment when deleting an answer or a question
30141
Can we use WHOSE for things? (or should I use 'that' or 'which'?)
2769
When to use "do" in phrases which are not questions?
2069
"Did you watch this movie?" or "Have you watched this movie?"
33410
Replacing "do you have" with "have you"
80170
"Have you seen her?" or "Did you see her?"
154999
Do I need to add "to" in every clause in this sentence?
101965
Why should we use 'Did you come?' instead of 'Did you came?'?
62864
Asking a question: DO or ARE?