theory about
theory on

She has her own theory about what is behind the name change.

My father had a theory about the long school hours.

He does, however, offer a theory about what might have happened.

I have a theory about why this should be so.

She had her own theory about what made it a good party.

"Did the police have a theory about what happened to him?"

George, I have a theory about why and how all this has happened to you.

Anyone can come up with a theory about the treatment of a disease.

There are several theories about why the city is having a problem now.

There are several theories about how Area 51 got its name.

There are several theories about the name of the town.

Does anyone have any theory about what has been happening to us?

Do you have any theories about why that should be true?

And do you have any theories about what it might turn out to be?

You were the one who came up with the theory about his going crazy now.

I guess everyone has his own theory about the weather.

All have theories about why and how Love killed her late husband.

They began using them to make a theory about storm systems.

There are many theories about why he made this change.

But since I never married, they've been trying all the theories about why not, one after another until the end and back again.

There were many theories about why people turn to drugs.

He has his theories about running a successful movie company.

"You have any theories about why someone might try to kill him?"

There were a couple of theories about him I wanted to check.

He also came up with theories about how computers might work.

Everyone has a theory on why the program works so well.

I have a theory on how we can stop it.

At least, that was the theory on what we were going to try.

"So when can you begin to move beyond theory on this?"

"Do you have a theory on what the something is?"

But I had never meant to test this theory on myself.

He has no theory on what is happening at the park.

There are two theories on where the name came from.

"Do you have any theories on how we might get them out of there?"

However, rights which exist in theory on paper are not enough.

"I'll tell you the rest of my theory on the way back."

There are a number of theories on what happened to it.

Here, now, is his chance to test the theory on someone besides himself.

We focus a lot in political theory on ways of treating other people.

There are at least two theories on the source of its name.

"Then what's your theory on the guy in the picture?"

Of course, we have yet to actually test that theory on anything other than pure energy.

There are several theories on how a world tour would work.

And if this was the theory on which the administration relied?

A number of theories on the matter have been proposed.

Do you have a personal theory on why Fantasy is so popular?

There are a number of theories on how the village got its name.

"The learning occurs when you get away from the computer and try your theory on someone else," he said.

Her theories on how the environment works are far from scientific.

"You got any theories on what he's doing up there?"