english grammar

SOME CONJUNCTIONS AND THEIR USES     Since, as a Conjunction, means:- (1) From and after the time when ; as I have been in such a pickle since I saw you last. Many things have happened since I left school. I have never seen him since that unfortunate event happened. Note:- Since, when used as a Conjunction in this sense, should be preceded by a verb in the present perfect tense, and followed by a verb in the simple past tense. To express a Consequence, Result, or Effect; as, I am so tired that I cannot go on. He bled so profusely that he died. He was so tired that he could scarcely stand. Than as a Conjunction, follows adjectives and adverbs in the comparative degree; as, Wisdom is better than rubies (are). I see you oftener than (I see) him. I am better acquainted with the country than you are. I would rather suffer than that you should want. Lest is used as a Subordinating Conjunction expressing a negative purpose, and is equivalent to