Whats the subject of the following sentence: The sergeant and captain agrees on the strategy to catch the criminal.

The subject is SERGEANT and CAPTAIN.

Because the subject is plural, you need the plural verb -- AGREE.

To identify the subject of a sentence, we need to identify who or what is performing the action of the verb. In this case, the verb is "agrees."

To find the subject, we should first identify the verb, which is "agrees." Then, we can ask the question "Who or what agrees?" The answer will be the subject of the sentence.

In the given sentence, "The sergeant and captain agrees on the strategy to catch the criminal," the subject is "The sergeant and captain." They are the ones who are doing the action of agreeing.