trenslate into english: он сделает это сам. Она сделает это сама я сделаю это сам они сделают это сами мы сделаем это

He will do it by himself. She will do it by herself, I will do it by myself, they will do it by themselves, we will do it by ourselves, childen will do it by themselves,  you will do it by yourselves, you will do it by yourself, kitten will do it by itself, Kate will do it by herself.