When should I use the Present Perfect Simple Tense?

We use this tense for unfinished and finished actions.

• I've known Karen since 1994.
• She's lived in London for three years.
• I've worked here for six months.

• I've known Sam since 1992.
• I've liked chocolate since I was a child.
• She's been here since 2pm.

• I've known Julie for ten years.
• I've been hungry for hours.
• She's had a cold for a week.

• I have been to Tokyo.
• They have visited Paris three times.
• We have never seen that film.

• I haven't seen her this month.
• She's drunk three cups of coffee today.
• I've already moved house twice this year!

• NOT: I've seen him yesterday.

• I've lost my keys (so I can't get into my house).
• She's hurt her leg (so she can't play tennis today).
• They've missed the bus (so they will be late).

• The Queen has given a speech.
• I've just seen Lucy.
• The Mayor has announced a new plan for the railways.

• I've been to Paris (in my life, but now I'm in London, where I live).
• She has been to school today (but now she's back at home).
• They have never been to California.

• Where's John? He's gone to the shops (he's at the shops now).
• Julie has gone to Mexico (now she's in Mexico).
• They've gone to Japan for three weeks (now they're in Japan).

I'm here to help you understand grammar and speak correct, fluent English.