I just wanted to know what's the difference between ein bisschen and manchmal? When and where should I use each? Can they be used interchangeably?
Manchmal talks about times of occurrence so it measures a countable thing. It answers the questions
ein bisschen talks about a quantity of uncountable things or characteristics without being limited to a certain domain. It answers to the questions
They are never interchangeable because one talks about countable and the other about uncountable.