We may form Compound Sentences by : 1. Using a Comma and a Joining Word (For, And, Nor, But, Or, Yet, and So) The teacher lectured for over an hour , and his students slept soundly. The students studied hard , for they feared they might fail the test. Aminah had a test the next day , so she studied all night long. Subject + Predicate , joining word Subject + Predicate . 2. Using a Semicolon. The teacher lectured for over an hour ; his students slept soundly. The students studied hard ; they feared they might fail the test. Aminah studied all night long ; she had a test the next day. Subject + Predicate ; Subject + Predicate . 3. Using a Semicolon, a Transition Word (however, therefore, in fact, on the other hand, nonetheless, besides, instead, then, moreover, similarly, nevertheless, etc.) and a Comma. The flower was beautiful ; however , it smelled awful. Salmah did all her homework ; then , she went to sleep. Ali studied for the test all wee...