YOU SAID:
I love to eat cake and drink tea at the same time.
INTO JAPANESE
私はケーキを食べながらお茶を飲むのが大好きです。
BACK INTO ENGLISH
I love to eat tea while eating cake.
INTO JAPANESE
私はケーキを食べながらお茶を食べるのが大好きです。
BACK INTO ENGLISH
I love to eat tea while eating cake.
You've done this before, haven't you.