never see a monster
I have/He has/We have never seen a monster.
play a computer game?
Have you ever played a computer game?
not write a poem yet
I haven't written a poem yet.
not paint a portrait yet
I haven't/She hasn't painted a portrait yet.
never be in Paris
I have/He has never been in Paris.
not watch a 3D film yet
I haven't/He hasn't watched a 3D film yet.
try scuba diving?
Have you ever tried scuba diving?
juggle?
Have you ever juggled?
never make a sculpture
I have/He has never made a sculpture.
not go water-skiing yet
I haven't/She hasn't gone water-skiing yet.
sing in a choir?
Have you ever sung in a choir?
never play in an orchestra
I have/He has never played in an orchestra.
not ride a horse yet
I haven't/He hasn't ridden a horse yet.
act in a play?
Have you ever acted in a play?