Wonderful Present Perfect

Use of Present Perfect

• puts emphasis on the result
  Example: She has written five letters.
• action that stopped recently
  Example: She has cooked dinner.
• finished action that has an influence on the present
  Example: I have lost my key.
• action that has taken place once, never or several times before the moment of speaking
  Example: I have never been to Australia.

Signal Words of Present Perfect

• already, ever, just, never, not yet, so far, till now, up to now