How to use "theory" in a sentence

What was going on? Later, Inspector Abbeline had a good theory

"Tina, you know this theory doesn't make sense

Ideally, I'd even like to be able to hand the reporter a neat theory about what really happened to those scouts, something sensational that he can hook his story onto."

"It's a theory that ought to excite a good reporter."

It's only a theory

But it's the kind of theory that almost any smart, ambitious reporter will go for in a big, big way - if we can come up with enough facts that appear to support it."

"Tina, this is a very imaginative theory, but-"

"It might be imaginative, but it's not a theory

"You dared me to shoot holes in your theory

My theory explains everything

It's another hole in your theory."

"Still think you can shoot my theory full of holes?" she asked.

All of his life, for reasons he had never been able to fully ascertain, he had been fascinated by death, intrigued by the form and nature and possibilities of it, enthralled by the study and theory of its meaning

It was then that I told him Miss Marple's theory.

Both ignored, as I did, two obvious problems with this theory.

'Have you got a theory?' I asked.

'Now we can do nothing except wait for Mr Munro to call us, and then we will see if my theory is correct.'