Present perfect 5 - Negative

We _______ (never climb) a mountain before.

• have never climbed

• have never climb

• has never climbed

• has never climbed

Jim ______ (not find) his keys yet.

• hasn't found

• hasn't find

• haven't found

• haven't find

They _______ (not visit) the new museum yet.

Jim _______ (never ride) a horse before.

(v1 -> v2 -> v3: ride -> rode -> ridden)

I _______ (not meet) the new teacher yet.

(v1 -> v2 -> v3: meet -> met -> met)

Mary _______ (never travel) by plane before.

(travel: Động từ có quy tắc)

We _______ (not read) that book yet.

They _______ (never play) basketball before.

That gifted student _______ (not win) any award this year.

I _______ (not try) the new restaurant yet.

(try: Động từ có quy tắc)