A clause typically contains at least a subject noun phrase and a finite verb.

The check replied, The main clause may contain a verb in the passive voice.

An independent clause contains a subject and a predicate; it makes sense by itself.

This clause contains a number of matters of principal importance.

Another special case is the class of problems where each clause only contains exclusive or operators.

A second clause contains the same stipulations for printed materials.

A single finite clause can contain more than three auxiliary verbs, e.g.

It might seem that every grammatically complete sentence or clause must contain a finite verb.

Pure literals can always be assigned in a way that makes all clauses containing them true.

The resulting clause contains all the literals that do not have complements.