I have played a game in English Lesson yesterday. We needed to write down the noun form of the verb. One of the word was “test", but I didn’t know what was the noun form of “test", so I wrote these on the board:
test @ v.
And I took the board to let my teacher see. She said that it was right! Horrible man…. Finally I knew the answer was “testify", I really didn’t know why she said that I got the answer right😀