He has a lot of candies! or He have a lot of candies!

He has a lot of candy.

candies might also be true, depending on the type(s) of candies involved.

But candy is probably better in most cases.

The correct sentence is "He has a lot of candies!"

To determine which form of the verb "have" to use in this sentence, you need to consider the subject and the tense. In this case, the subject is "he," which is a third-person singular pronoun. For third-person singular subjects (he, she, it), you should use the form "has" with the verb "have."

If the subject were "I, you, we, they," or any plural noun, you would use the form "have." For example:

- We have a lot of candies.
- They have a lot of candies.

Remember, the verb form should agree with the subject in terms of number and person.

"He has a a lot of candies!"