Поставьте в present simple
yana (cook) very well
they (play) football every weekend

Yana cooks very well

They plays football every weekend

Yana cooks very well.

They play football every weekend

Present Simple сам по себе очень прост. Если используется в сочетании с I, you, we, they - после глагола ничего не ставим. Если в сочетании с he, she, it - после глагола добавляем -s.

Например:

They play basketball very well;

She reads books.