Question

this tense is used to show an action which is incompleted?​

Answer 1

Answer:

The Present Perfect Continuous Tense: Also known as Progressive Tense or the Incomplete Tense. The Present Perfect Continuous Tense is used to describe an action, event or a situation that has begun in the past and continues into the present, i.e. the action may not have finished yet.

Answer 2

Answer:

present perfect continuous tense

hope this helps you..