Questions & Answers about Не путай дату встречи с датой экзамена.
Не путай is a negative imperative: it means don’t confuse / don’t mix up.
- путай = the imperative form of путать
- не = makes it negative
This form is used when speaking to one person in an informal way.
So the sentence is addressed to one person, like a friend, child, classmate, or someone you speak to with ты.
Because путай is a command, while путаешь is a normal present-tense form.
- ты путаешь = you confuse / you are confusing
- не путай = don’t confuse
English often uses the bare verb for commands, and Russian does something similar with a special imperative form.