Sentence examples for could be serious from inspiring English sources

This could be serious.

Of course Mr. Nielsen could be serious.

The team fears it could be serious.

It proved they could be serious art.

The wider ecological effects could be serious.

The consequences could be serious if sales do not rebound.

He could be serious, but was never solemn.

But even with interactive television, there could be serious challenges.

He is saying to himself, "This could be serious, Arthur.

But, in fact, we have been failing at it, and the consequences could be serious indeed.

But who knew that it could be serious, like an ailment or an affair of state?