In the sentence, "I have visited Canada twice, but not since 1997," the verb is in the _______________ tense because __________. A)    present perfect; the action has been completed but is a fact NOW. B)    present; "have" is a present tense verb form. C)    past perfect; the action occurred BEFORE the past time of 1997. D)    pluperfect; the action has happened more than once in the past.

Which past tense form describes habitual or repeated actions in the past?Question 6Select one:a.imperfectb.preterite

¿Qué oración usa correctamente el Present Perfect Continuous tense? a) She has lived here for ten years. b) They have been living here since last year. c) He visited his friend yesterday.

what is the verb tense in the sentence: "By this time next year, Senator Smith will have been in office for 24 years."

Put the verbs in brackets in the correct form, past simple or present perfect.1. I (have) this shirt for nearly four years.2. Joanna (tidy) her desk, but now it's in a mess again.3. Mike (lose) his key. He can't find it anywhere.4. The last time I (go) to Brighton was in August.5. I (finish) my homework. I (do) it before tea.6. And the race is over! And Micky Simpson (win) in a record time!7. Martin (be) to Greek five times. He loves the place.8. Rupert (leave) a message for you. He (ring) last night.9. Your car looks very clean. (you / wash) it?10. We (move) here in 1993. We (be) here a long time now.11. Mr Clack (work) in a bank for 15 years. Then he gave it up.12. Is this the first time you (cook) pasta?13. I (work) for a computer company since I (graduate) from university.14. A: Is your father at home?      B: No, I'm afraid he (go) out.      A: When exactly (he / go) out?      B: About ten minutes ago.15. A: Where do you live?      B: Boston      A: How long (you / live) there.      B: 5 years.      A: Where (you / live) before that?      B: Chicago      A: How long (you / live) in Chicago?      B: 2 years.

the imperfect tense is used to describe .....  in the past