rdinate, and vice versa - the action expressed by the predicate clause can precede action, severe in main predicate.In the main-clause of the sentence that begins with the conjunction before, the action expressed by the predicate of the main clause precedes the action expressed by the predicate subordinate that obviously of importance of the conjunction before. Therefore, in the main clause is used Past Perfect, and the contractor - Past Simple. Perfect is used to emphasize that the action of the main clause is true before the action clause.Past Perfect is used in the main clause when the subordinate begins with the conjunction when, which forms part of the alliance, together with the adverb hardly (scarcely ), standing in the main sentence - hardly (scarcely) ... when slightly (only) ... as.
