Is it correct to say these are they?

Is it correct to say these are they?

Although only the pickiest listeners will cringe when you say “these are them,” the traditionally correct phrase is “these are they,” because “they” is the predicate nominative of “these.” However, if people around you seem more comfortable with “it’s me” than “it’s I,” you might as well stick with “these are them.”

Is they are the one correct?

‘They are the one’ would not be correct if you did say it. It should be ‘They are the ones’, because ‘they’ denotes the plural, and ‘ones’ is the plural form of ‘one’.

How to use they in a sentence?

They is sometimes used at the beginning of sentences to refer to people in general or to refer to a group of people who are unknown or whose identity does not need to be stated: They say that it will take several months to recover. They’ve given Pablo another pay rise.