Matching Pairs Comma Usage Matching GameOnline version Test your knowledge of comma rules with this fun matching pairs game! by Celia Tarnowski 1 Dates and Addresses 2 Introductory Elements 3 Compound Sentences 4 Quotation Marks 5 Adjectives 6 Non-essential Clauses 7 List Separation 8 Direct Address Use commas to separate coordinate adjectives. Use commas to separate quoted speech from the narrative. Use commas to separate items in a list. Use a comma before conjunctions in compound sentences. Use commas to set off non-essential information. Use a comma after introductory phrases. Use a comma when addressing someone directly. Use commas in dates and addresses for clarity. 1 Adjectives 2 Introductory Elements 3 Non-essential Clauses 4 Quotation Marks 5 Compound Sentences 6 List Separation 7 Dates and Addresses 8 Direct Address Use commas to separate quoted speech from the narrative. Use a comma before conjunctions in compound sentences. Use commas in dates and addresses for clarity. Use a comma after introductory phrases. Use commas to set off non-essential information. Use commas to separate coordinate adjectives. Use a comma when addressing someone directly. Use commas to separate items in a list.