

Не помогай, я сам!
Don't help me, I'll do it myself!
Ты сам приготовил ужин?
Did you make dinner yourself?
Я не хочу делать это сам.
I don't want to do it myself.
"сам" is in the lesson "Pronouns" (Level 30), along with 17 other useful words. LinDuo has 180 topic lessons like this one, 2,380 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.