Run-on sentences contain two sentences brought together without punctuation. The writer must decide how he or she will revise the run-on, using a period or a conjunction. There is no separation between public and private in American culture . Violation of privacy is always present. The writer uses a comma instead of a period.
Poor scientists write about experiments, but they fail to cite their information.
Apostrophe to Show Possession 1. When the singular noun ends in an s , add the 's and then say the word aloud. If it sounds too awkward, drop the final s , but keep the apostrophe. To form the possessive of plural pronouns ending in s , add only an apostrophe.