Expressions of Time Using in, on, at, ago in time; In; season of years, years and centuries, months, parts of the day
Uses of ‘Ago’ and ‘Before’ Ago is used to count back from the present. It is used with a past tense and a time expression. Before is used when you date back from any point of time which is made specific. Follow the this expression;
Uses of For, Since and Ago For, since and ago are used to talk about time. For is used to indicate a period of time. It is often used with the Present Perfect.
Uses of For, Since, Ago For, since and ago are used to talk about time. Following list;