be 的
一般现在时是am,is are
一般过去时是:was,were/ am,is的
过去式是was,are的过去式是were
句中有
be动词改成一般疑问句只需要把be动词提前到句首
如:It is Saturday today.过去:It was Friday yeasterday.一般疑问句:Was it Friday yesterday?Yes,it was./ No,it wasn't
They were at the beach last weekend.Were they at the beach last weekend?Yes,they were./ No,they weren't.