Directions: Read each sentence to find out whether there is any grammatical error in it. The error, if any will be in one part of the sentence. The letter of that part is the answer.
I didn't knew you had gone to Goa for a vacation.

Options

A. a) to goa
B. b) for a vacation
C. c) you had gone
D. d) I didn't knew

Answer

D

Explanation

Did in a sentence always comes with the first form of verb(`V_1`) like Did come/ Did go/ Did has. Hence, I didn.t know. is answer.