| Collective Nouns |  |
Lists | |
Parallel Structure | |
Numbers,Dates,Times | |
Phone Numbers |
| Prepositions | |
Split Infinitives | |
That and Which | |
They're, Their, There | |
Web Styles |
Use that to introduce clauses that are restrictive/essential/dependent. These clauses contain information that is necessary to understand the main idea of the sentence.
Commas do not precede nor follow such clauses or other restrictive information: The snow that fell overnight buried our car.
Use which, on the other hand, to mark unrestrictive/inessential/independent
clauses.
Commas surround or precede these clauses: The snow, which happened to bury our family pet, was beautiful.