Why is a compound verb with 2 verbs joined by a conjunction and referring to the same subject the

• same?
• I read an old book, listened to music while I waited. When I was 15 I were able to listen to music and read a book.
• What are your views on my kids hiding in my aunt’s house?

I know that to be, to have or a modal verb paired with a verb is an auxiliary verb. My mother has

• been sleeping.
• My dog had bitten him. How did I save him?
• What is this movie worth watching?

What happens when an infinitive follows a conjugated verb? Why auxiliary verbs are also called compounds in the following sentences?

• The girl has moved into a new house, and he decided to give them a tour.
• I need to go to the store. What is the cheapest way to go?
• Many older people prefer to write in cursive.

What is it like to be an internet-dependent adult?