Чем отличается тема was were с had

1. Was, were - формы неправильного глагола to be (быть, находиться) в прошедшем времени. Was - для первого и третьего лица единственного числа, were - для we, you, they. Например: I was born in 2011. They were at school yesterday.

2. Had - форма неправильного глагола to have (иметь) в прошедшем времени для всех лиц. Например: He had five lessons yesterday. They had breakfast at eight o\'clock.