Which of the following sentences is correct?
At what time I should come tomorrow?
At what time should I come tomorrow?
I'd like to know where I should put the word should.
Which of the following sentences is correct?
At what time I should come tomorrow?
At what time should I come tomorrow?
I'd like to know where I should put the word should.
At what time should I come tomorrow?
Is correct.
We can also ask:
I should come at what time tomorrow?
But the first form is the most common.
Please see "How it works?" vs. "How does it work?" for more information.