Do you sing on the weekend? No, I don't sing on the weekend. I sleep on weekends.
Does
Egor swim on the weekend? No, he doesn't. Egor doesn't swim on the weekend. Egor sings on the weekend.
Is Lyuba eating now? No, she is't. Lyuba isn't eating now. Lyuba's sleeping now.
Do my friends always dance? No, they don't. My friends don't always dance. My friends always laugh.
Is Egor walking at the moment? No, he isn't. Egor isn't walking in the moment. Egor is reading at the moment.