This grammar tutorial provides rules for the comma to separate independent clauses in a compound sentence.

Complex sentences are simple sentences with dependent or subordinate clauses added to them. Compound-complex sentences are compound sentences with dependent or subordinate clauses added to them.

What is a semicolon and how do you use it in your writing? Check out this tutorial to learn more about this punctuation mark in English sentence structure.

Students sometimes have difficulty learning to combine sentences correctly and effectively. This site discusses several methods and provides practice opportunities and quizzes.

An exercise with ten run-on sentences where students are asked to choose which re-written sentence is correct. A percentage score is given at the end of the exercise.

Complete each sentence by typing the conjunction in the box to show the correct relationship between the independent clauses in the sentence. Hints are available if needed, and answers can be checked after each sentence.

This entry focuses on the rules for comma use including listing the uses, explaining the rules, and providing detailed examples.