did you a favour 點解?

Please do me a favour = 請幫我一個忙. There is no such thing as GIVE ME A FAVOUR.

If someone said "I did you a favour" meaning he/ she HAS help you on something.

So, there is such thing saying "I did this person a fovour." In english, it doesn't necessary always use the same term esp we all know about past tense. If I am asking for some help from a person, of course saying "Can u do me a favour?" but in other case like someone has done something for you, then we have to stick with past tense, and use "did me/you a favour."

hope it helps~

=幫你一個忙



hope i can help u