The complex clause consists of two clauses, the second of which is subordinate to the first. Taken as a whole, however, this complex clause is manifestly coördinate with the two simple clauses, since the three form a series joined by coördinate conjunctions.

515. Further examples of compound complex sentences are:—

In this sentence they were is understood after till.

VARIETIES OF THE COMPLEX SENTENCE

516. A complex sentence may be expanded either by compounding the main clause, or by increasing the number of subordinate clauses. Both methods may be used in the same sentence.

517. The independent (main) clause of a complex sentence may be compound.

Note that the subordinate clause depends on the compound main clause, not upon either of its members.

Thus, in the first example, the subordinate clause (when they saw the ship) depends upon the compound main clause, they shouted for joy and some of them burst into tears. It is an adverbial modifier of both shouted and burst.