What is the difference between 「食べるいいですか」 and 「食べていいですか」


They both mean "Can you/I eat?" So can they be used interchangeably?

I know that the て-form is used when speaking a command to someone so is it a
more direct(?) form of asking a question? Like asking a question to someone
who is superior to you?




The difference is that the former is ungrammatical, the latter is grammatical.
They cannot be used interchangeably.

