Singular
Do I/you like?
Does he/she/it like?
Plural
Do we like?
Do you like?
Do they like?
Remember that we put do before I/you/we/they: Do you speak French? Do you study well? Do they travel often?
However, we put does before he/she/it: Does he work on Saturdays? Does she play the piano? Does it snow here in winter?
I think it's going to rain.
She doen't understand her teacher.
I love classical music. But I don't like pop music.
A student feels sick.