query: Can't ask for or couldn’t ask for what to use in this following context? Is this phrase Couldn't ask for has any particular grammar rule?
positive_passages.docid: 28323
positive_passages.text: When do I use "can" or "could"?
negative_passages.docid: 114004
negative_passages.text: Where to use "must/should/might/may/could/shouldn't have "in a sentence?
negative_passages.docid: 2182
negative_passages.text: vs. . Which to use?
negative_passages.docid: 18051
negative_passages.text: Negation of 2 things: "and" or "or"?
negative_passages.docid: 3075
negative_passages.text: Is there a rule about double negations that aren't meant as double negations (e.g. "We don't need no education")?
negative_passages.docid: 62938
negative_passages.text: "Not able to" vs. "unable to"
negative_passages.docid: 7227
negative_passages.text: Is it correct to say "I kindly request you to..."?
negative_passages.docid: 4023
negative_passages.text: "I let him do it" and "I allow him to do it", why exactly does one require 'to'?
negative_passages.docid: 72941
negative_passages.text: Prepositions used with "inquire"
negative_passages.docid: 88730
negative_passages.text: can't have been vs. couldn't have been
negative_passages.docid: 12800
negative_passages.text: 'declarative' questions and 'interrogative' questions (When to use which?)
negative_passages.docid: 2769
negative_passages.text: When to use "do" in phrases which are not questions?
negative_passages.docid: 27311
negative_passages.text: Why use "need not" instead of "do not need to"?
negative_passages.docid: 40378
negative_passages.text: Allow, Allow Of, Allow For
negative_passages.docid: 47879
negative_passages.text: Polite or unrectified placement of the word please
negative_passages.docid: 72419
negative_passages.text: Usage of past tenses with "wish"
negative_passages.docid: 45942
negative_passages.text: Why is the same modal auxiliary, 'may/might' used to ask permission and for uncertainty?