UNITE 5

UNITE 5

1. PRESENT PERFECT

   • We use it to talk about something that happened before now, at am indefinite time in the past.
     • to talk about an action or event that started or happened in the past but has got a connection with the present.

2. BEEN AND GONE

   • The verb "go" has two past participle forms: been and gone
     • we use been when we know that someone has returned from a jurney
       • we use gone when the person has not returned

3. EVER AND NEVER

   • In present perfect questions we often use ever (at any time in the past)
     • To express a negative, we can use never (at not time in the past) +affirmative verb

4. ALREADY, JUST AND YET

   • We use already before the past participle in affirmative sentence and questions
     • We use just before the past participle in affirmative sentences and questions to talk about something that happened inmediately at the moment
       • We use yet at the end of the sentence in negative sentences and questions, to talk about something that was expected to happened

5. FOR AND SINCE

   • We use for with a period of time: for a few seconds, for a day, for a month
   • we use since with an specific time: since ten o'clock, since friday, etc.
   • we use the question how long...? with the present perfect to ask about the length of time

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