Agreement is the art of making sure that sentence parts agree with one another; you want to make sure that your subjects and verbs match up.
Subordinating conjunctions join two parts of complex sentences––independent clauses to dependent clauses. David explains how.
It's totally okay to end sentences with prepositions! David, Khan Academy's grammarian-in-chief, explains the history and the context behind this long-held grammar myth.
Much has been made of the distinction between "that" and "which" in English, but it can mostly be summed up in two points: 1. "That" doesn't work so well with commas. 2. "Which" doesn't work so well with people. David the Grammarian explains.
This is one of the most frequently-confused trios in the English language. Follow along, and learn to suss out the differences between these three words.
Three essential types of sentence are declarative sentences (which are statements), interrogative sentences (which are questions), and imperative sentences (which are orders). Join us as we give examples of each!
David and Paige, KA’s resident grammarians, introduce the three ways to end a sentence: the period, the exclamation point, and the question mark.
Another troublesome triad, "to", "two", and "too". Let's set these` frequently-confused words straight!
This is, bar none, the greatest video Khan Academy has ever made, although I may be slightly overstating that. Learn how to master this style by following along.
An introduction to how quotation marks are used in titles.
Pronouns are words that can replace nouns, like the way "it" replaces "elephant" in "I looked at the elephant. It was grey.".
A sentence is a grammatically complete idea. All sentences have a noun or pronoun component called the subject, and a verb part called the predicate. David and Paige explore this division across several different example sentences.
When do you use who, and when do you use whom? David, KA's grammarian, explains.
The colon can separate parts of a title, citations of religious texts, and the hour and minutes in the time of day. Paige explains how!
These are the most regular of the irregular verbs; while they don't behave exactly like regular verbs, like present tense "walk" become past tense "walked", they do maintain the "-ed" sound. It's just spelled differently.
When you want to talk about the future in English, you use the future tense.
Some irregular verbs have these strange -en endings that only show up in their past perfect/past participle forms. Let's take a look!
The past tense refers to event that have happened in the past. The basic way to form the past tense in English is to take the present tense of the word and add the suffix -ed. For example, to turn the verb "walk" into the past tense, add -ed to form "walked." .
How do we talk about things that are happening right now?
How formal or informal should you be when you write or speak? Let's dive into that!