What’s the difference between a simple verb phrase and a complex verb phrase?

What’s the difference between a simple verb phrase and a complex verb phrase?

List at least 4 means of expressing future time.

Define “ellipsis”

Participles

What is “fronting”?

Rewriting B’s answer by using a cohesive device

A: Is John trying to enter Harvard Law School?

B: No, I don’t think John is trying to enter Harvard Law School.He hates lawyers.

Rewriting the second sentence by using a cohesive device

My wife and I take a walk after supper this evening.In fact, we take a walk every evening.

Rewriting the second clause by using a cohesive device

The limited seats should be given to old people and the younger people are advised to stand for a while.

Using extraposition

To see all the high school kids standing on one foot outside school property and puffing away furtively and defiantly on their cigarettes makes a disappointing view.

Using an adjunct

His child had gone to school.

He could concentrate on his research work.