What type of pronoun is used in the sentence He going to win?

The pronoun used in the sentence "He going to win?" is he. It is a subject pronoun, meaning it acts as the subject of the verb "going".

However, the sentence is grammatically incorrect. The correct form would be:

* He is going to win.

This is because the verb "going" needs an auxiliary verb "is" to form the present continuous tense.