where we use "what" and where we use "which"?
33549
"Which" vs. "what" — what's the difference and when should you use one or the other?
140181
Past tense and the phrase "who knows what"
16190
"What kind of a person" vs. "what kind of person"
26800
When to use 'which' or 'in which' or 'that' (as relative pronouns)?
155297
Do you use/Are you using
54454
What is the difference between "What are you?" and "Who are you?"?
136471
When can we interchange “who/which" and "that”?
38746
Can the relative pronoun "whose" be used for animals, things and countries?
30933
'Which', 'whose' or something else?
13428
When it's OK to omit "where?"
14440
Is it appropriate to put a comma before "which"?
21796
Why is "that"/"which" omitted in this sentence?
93784
When should I use "in" or "on"?
17739
Which "mean" to use and when?
16738
Why does legal English sometimes repeat the antecedent noun after "which"?
89834
"I who has" vs "I who have."
37073
"who" vs. "whom" and when to omit the relative pronoun