1) What worked in a factory last year?
2) Where did his brother work last year?
3) His brother worked in a factory, didn’t he?
4) Did his brother worked in a factory last year?
5) Did his brother worked in a factory or in the office last year?
4 форма - глагол с окончанием -ing
Примеры:
1 форма- play 2 форма-played 3 форма- played 4 форма- playing перевод играть!!!!