Questions & Answers about После ужина я вымыл половник и поставил его рядом с кастрюлей.
Because после requires the genitive case.
- ужин = dinner
- после ужина = after dinner
So ужина is the genitive singular form of ужин.
A few similar examples:
- после работы = after work
- после урока = after the lesson
- после фильма = after the film
This is something you mostly just memorize with the preposition: после + genitive.
They are past tense, masculine, singular forms.
In Russian past tense, the verb agrees with the subject in gender and number:
- я вымыл, поставил = I washed, I put down — if the speaker is male
- я вымыла, поставила = if the speaker is female
- мы вымыли, поставили = we washed, we put down
So this sentence suggests that the speaker is male. If a woman said it, she would say:
После ужина я вымыла половник и поставила его рядом с кастрюлей.