In Verbs^x, Negations^x, Commas^x

Hi, this has been asked more than once I guess, but I decided to put it neatly this way: Consider: usually, often, rarely, sometimes. Where is it possible to place them in a sentence? I wrote my choices in blue. I do it. <--- this is an affirmative sentence. At the beginning : often (with...

Hi Paco I hadn't known either the importance of punctuction until I took a grammar class a couple of months ago. here is something that can be useful to remember: when a adverb clause precedes an independant clause ,a comma is used to separate the clauses. When the adverb clause follows,...