“They are cute” 的过去式是 "They were cute."
过去式是指过去某个时间发生的动作或状态。在英语中，过去式通常由动词的变化来表示，如果是规则动词，一般在动词原形后面加-ed，如work-worked;而不规则动词则需要记住它的过去式形式,如 be-was/were.
例句：
They were cute when they were puppies. (他们在小狗时很可爱)
I thought they were cute, but now I think they're ugly. (我曾认为它们很可爱，但现在我认为它们很丑)
这个词来源于古英语，这是一种被称为过去时的时态，在古英语中表示过去发生的事情,在现代英语中仍然被广泛使用.