(climb) out of the window
I have (never) climbed out of the window.
(fall) off a bike
i have (never) fallen off a bike
(go) scuba diving
I have (never) gone scuba diving
(have) dessert for dinner
I have (never) had dessert for dinner
(google) my own name
I have (never) googled my own name
(run) a marathon
I have (never) run a marathon
(score) 100 on a test
I have (never) scored 100 on a test
(see) snow
I have (never) seen snow
(sing) karaoke in front of people
I have (never) sung karaoke in front of people