they were 后面的动词要不要加第三单数

they were 后面的动词要不要加第三单数 were are they?为什么不是were are them?不是动词后面要用宾格的嘛? They fall in love with each other at the first time,They的后面要不要接be动词吗? be后面加什么词性的词名词,形容词,副词,动词?为什么they were so frightful错,是形容词.they were so frightened.对,是动词? 关于There be sb/sth doing句型如果是过去时态怎么办?be动词要不要变成was、were?后面的doing怎么办? i like 后面的动词要不要加ing like to 后面的动词要不要加ing often后面的动词要不要加s hobby后面的动词要不要加ing? help 后面的动词不定式要不要to? never 第三人称后面的动词要不要加s the后面的名词要不要加s,动词呢 can的后面要不要加动词原型 can后面的动词要不要加ing he will 后面的动词要不要加S family 后面的动词要不要三单变化?如题 they 后的动词要不要加S BE动词后面跟副词还是形容词比如 是 What were they happy还是what were they happily