Student or Learner
What is the diffeent between sometime and sometimes - how we use them?
Sometime means at an unspecified point in the future. "I'll you again sometime." "The meeting will be held sometime next week." It can also be two words "some time".
There is also has another less common use as an adjective, meaning occasional or former "Into the bar walked Jeff - drug dealer, bouncer, and sometime hitman."
In future, MartinEnglish, when a moderator has asked the OP to make his/her own effort first, please wait until that has been done.
This is probably a homework question, and both words can be found in any dictionary.