Thereare three main verb tenses: past , present , and future. In English, each of these tenses can take four main aspects: simple , perfect , continuous (also known as progressive ), and perfect continuous. The perfect aspect is formed using the verb to have, while the continuous aspect is formed using the verb to be. Kazlas i don't understand when you say about"how much".you say that for present continous we use "i have been waitING." (for short time) and for present perfect tense we use "i have been". But what form must have the verb after "i have been" (for the present perfect tense). Thepresent perfect continuous usually emphasizes duration, or the amount of time that an action has been taking place. Read on for detailed descriptions, examples, and present perfect continuous exercises. The present perfect continuous is formed using has/have + been + present participle. Presentperfect: typical errors - English Grammar Today - a reference to written and spoken English grammar and usage - Cambridge Dictionary byKwieci. Y11 Y12 English Holiday activities Past Simple Present Continuous Present Simple Steps. Past continuous / past simple - jumbled sentences Unjumble. by Davidw. A2 B1 ESL ESOL Past continuous tense Past simple tense. Tenses - Missing Word Missing word. by Jadeshrives. Ixt0pC.

when to use present perfect or present perfect continuous