Ни мой брат и ни сестра не работали

Ни мой брат и ни сестра не работали летом,так как они еще слишком малы

Результаты (английский) 1:

Neither my brother nor my sister were not working during the summer, as they are too small

Результаты (английский) 2:

Neither my brother nor sister did not work in the summer, because they are too young

Результаты (английский) 3:

Neither my brother or sister is not worked in summer,as they are still too small