* Simple: We had dinner and afterwards watched a movie.
* With a comma: I finished my work, afterwards, I went for a walk.
* With a conjunction: I went for a walk, and afterwards I had a nap.
* In a complex sentence: Afterwards, when I had calmed down, I realized I had overreacted.
* With a preposition: I went to the store afterwards for some milk.
"Afterwards" is an adverb that means "after a particular time or event." It can be used to indicate the order of events or to introduce a new action that follows something else.