The verb "tener"

This verb is a very useful one. It means "to have" and has some irregular/stem-changing conjugations. Not only is it used to describe possession, but can also be used to describe something that you "have to do" it will be used followed by the word "que" for example "yo tengo que estudiar" (I have to study). It will follow the "2 verb rule" where you have 2 sentences in the same clause, or 2 verbs sharing the same subject, the first one is conjugated then the second one will not be.