He likes to sit and look at the birds.look后面加不加s?birds前面加不加the?

He likes to sit and look at the birds.
look后面加不加s?
birds前面加不加the?

因为句子的谓语是like不是look哦,like to do,喜欢做某事
birds前面的the是需要的,坐着不是看别的,而是看鸟,强调作用

不加S,不加THE

谓语应与前边一致

注意那个and 这里的look和sit 是并列的，都是like to do 所以不加s
这里的the 我觉得可有可无，有就是特指了，没有就是泛指了，看具体语境