Comma Before Which in Nonrestrictive Phrases > https://www.grammarly.com/blog/comma-before-which/ There, they say I'm required to put comma before the certain 'which' phases like this one below. > Everyone loved Robin’s video, which she had filmed in her garage. But I don't get it at all. Do I have to put comma before this sentence? The same page said that the 'nonrestrictive which' can be taken out of the sentence without altering the original meaning. I can't notice the difference when comma isn't there or the phrase after 'which' being completely removed... because they didn't say 'videos'. If my English is unreadable, I apologize... Here in my country is 4AM now so I couldn't keep a clear head.