If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content
Current time:0:00Total duration:3:19

Video transcript

hello grammarians hello Paige hi David so today we're going to be talking about commas in space and time because commas have basically one function which is separating parts of sentences separating parts of sentences and what's neat is that we can use commas to separate stuff out in space and separate stuff out in time so I'm going to handle space Paige is going to do time it's going to be sweet so first of all one way in which you can use commas to separate space is by talking about addresses people's physical addresses in space so the fictitious detective private detective Nero Wolfe one of my very favorites is supposed to live at 454 West 35th Street in New York so if I wanted to write mr. Wolfe a letter and I would write him a letter because he hates talking to a phone I would address it like so separating all elements of his address with commas so Nero Wolfe comma 454 West 35th Street comma New York City or just New York comma New York and then I would put the zip code which i think is 1 0 0 0 1 but I'm not sure if they have zip codes when those stories took place so but that doesn't matter you separate out all of these elements with commas and this isn't just for writing address this is for referring to any point in space on the planet so if I wanted to tell you the name of my favorite city on the planet I would say Waga dugu comma Burkina Faso real place I've never been there I would like to go someday and that is how you use commas in space page how how our commas used in time so commas are used in dates okay so I could say on Tuesday comma October 5th comma 2010 comma I ate a cricket so as you can see we've separated the day of the week from the day of the month right October 5th from the year 2010 and then separated all that from the rest of the sentence I ate a cricket because all of this is like a prepositional phrase that is modifying the word ate true so we want to make sure that all of it is separated out from the rest of the sentence and we separate it out using our friend the comma of course so if you want to express a kind of complicated relationship in time or in space you want to deliver you want to make sure a letter gets to a very specific place you want to talk about a very specific city in a very specific country you use commas you want to talk about a very specific time you use commas that's commas in space and time my grammarians you can learn anything Dave it out page out