in the following two sentences,why they use"thinking" behind the comma?i mean is something like a word ommited after the comma? 1.I WAITED FOR TWO MONTHS,THINKING THAT IT WOULD BE BAD TIME FOR HIM. 2.WHILE TWO-SHIV POISON IS NOT ON COOLDOWN,SHACO'S BASIC ATTACKS POISON HIS TARGETS,SLOWING THEM FOR 2 SECONDS AND CAUSING MINIONS AND MONSTERS TO ....BLA BLA BLA. (btw i'm a league player lol, and in this sentence,like i said above, is something like a word ommited after the comma?i just cannot figure out why they type something like this,i mean it seems more like a present continuous tense without "subject+be") or it should be something like"I WAITED FIR TWO MONTHS AND NOW I AM THINKING THAT IT WOULD BE BAD TIME FOR HIM."? PLS HELP ME!! THIS GRAMMAR HAS BEEN BOTHERING ME FOR LIKE 2 MONTHS!