Question

Rewrite the
sentences
in
Present Perfect
Continuous Tense :
(iv)
How long you (wait) for me?
(v)
The volcano (create) havoc ever since it
erupted.
P. T. O.​

Answer 1

(iv)How long have you been waiting for me ?

(v)The volcano has been creating havoc ever since it erupted.

Remember it Always in Perfect Continuous Tense

Subject+have/has+been+V+ing+Object.

Answer 2

Explanation:

Reference to statements given in question, their present perfect continuous tense are;

iv) How long have you been waiting for me?

v) The volcano has been creating havoc ever since it erupted.

In English grammer, present perfect continuous tense is used where  something started in the past but it is on going at the current time also.