The ellipsis has sprung up like a weed in online discourse. Avoid it except in situations in which you are omitting quoted material.
Use an ellipsis to indicate the deletion of one or more words in condensing quotes, texts, and documents. Be especially careful to avoid deletions that would distort the meaning.
Leave one space on both sides of an ellipsis: I … tried to do what was best.
If the words that precede an ellipsis constitute a grammatically complete sentence, either in the original or in the condensation, place a period at the end of the last word before the ellipsis. Follow it with a space and an ellipsis: I no longer have a strong enough political base. …