0
votes
2answers
4k views

Is the phrase “… or I'm mistaken” correct?

I want to write phrase "Capital of A is B, or I'm mistaken?", but I'm not sure that the second part of thus phrase is correct. Should I write "... or I've made a mistake?", or "... or I'm wrong?"? ...
7
votes
1answer
319 views

Tagged question and perfect tense

I've just passed one of numerous English grammar online tests. And I agree with all the mistakes I've made except this one: You ______ put it back before the boss comes ...
1
vote
3answers
286 views

“I'm not X, am I?” vs. “I'm not X, do I?” [closed]

Which of the following is correct or better? Can they both be used? I'm not making any sense, am I? I'm not making any sense, do I?