Have/has+V3

1. Actions in the past that have finished by now and are connected with NOW !

 She has come home. (She’s come…)

 We have watched the film. (We’ve watched…)

 I’ve written the letter.

2. Actions that have a result in the present.

I’ve bought a good book! (I have it now)

He’s won a lottery! (He has the money now)

3. States that began in the past and continue in the present (stative verbs + to live, work).

 I have lived here for 3 years (up to now).

 They have been together since 2015 (up to now).

4. Life experience (without mentioning the exact time) with never, ever, many times

 I have never jumped with a parachute.

 She has been to Paris 3 times.

Markers

Unfinished periods of time: today, this week/ month/year, etc. 

recently , lately

 for (some time), since

 already, yet, just

for ages

 in the last two/three days/weeks/years

 so far

 never, ever, before

how long…? (+ stative verbs)

 how many times..? – once, twice, three times…

It’s the first/second/third time…

Look! Listen!