Basic of English grammar - Tenses
Practicing tenses in English should be done to be fluent in speaking and efficient in writing as they stand as a backbone in framing a sentence and providing the intended meaning to the sentence. Twelve tenses are commonly used while developing a sentence depending on whether it the action occurred in the past , present or in the future and also whether the action is continuous or yet to start or have been ended. Verbs usually can be used in three forms such as past present and future. Past is used for the action which happened some time before till long back.