My gut feeling often tells me to add a comma, but I'm not 100% sure. I'd like to know when you should and when you shouldn't use a comma. For example, does the following line requires a comma?
During my research, I discovered that Captain Hook was not able to fly.
Perhaps the sentence could be arranged differently, perhaps better. Since the time & location of the event could be hidden, I think a comma should be placed.
The comma placing in the above sentence is identical as the example given. But is the comma correct? When is and when is a comma out of order in cases when there is a pronoun halfway during the sentence?
Assuming I, he, she, we, etc. are pronouns. My native tongue is Dutch, so I'm not 100% sure what it's called in English.