Sentence examples similar to a valid speculation from inspiring English sources

Some points you raise are valid speculations and questions, whereas others can be considered as criticism of the Wang et al. article.

A valid enough excuse.

That is a valid point.

Is that a valid argument?

It's a valid question.

I had a valid passport.

"A valid point," Alec said.

A valid point to make.

They make a valid point.

It is a valid concern.

He made a valid argument.