We use appear to say how something looks or seems to look. We usually follow it by an adjective or by a to-infinitive:
They appear very disappointed.
There appears to be a problem with the car.
The people don’t appear to know why they are here.
Less often, and in more formal situations, we can use appear with an adjective + noun:
She appears quite a nervous driver.
We can use appear with it as a subject, followed by as if, as though or that:
It appears as if you got the wrong directions to the school.
It appears as though they were wrong.
It appears that he was not the first choice.