A suffix is a letter or group of letters that goes on the end of a word and changes its meaning. Adding the suffix -ing to the end of a noun can change it into a verb. Narrator: I've told you, fur ...

When a student writes "I am frustrating with that class," we recognize it as an error, but the error is not one that makes the writing unintelligible. The message ...

Learning English grammar can feel overwhelming, but certain mistakes appear repeatedly amongst new speakers. These errors aren't random—they follow predictable patterns that you can learn to avoid.