The present perfect progressive tense expresses actions that either recently stopped or are still ongoing, with emphasis on the duration of the action. It is formed using some form of "have/has been" plus the present participle of the verb. There are some spelling exceptions when adding "-ing" to verbs ending in "e", consonant doubling after short vowels, and changing "ie" to "y". The present perfect progressive is used to describe actions that have recently stopped or are still ongoing, with examples given about writing, working, living, studying, and swimming.

1. The present perfect progressive expresses an action that recently stopped or is still
going on. It puts emphasis on the duration or course of the action.
Form of Present Perfect Progressive
Positive Negative Question
I / you / we / they I have been speaking. I have not been speaking. Have I been speaking?
he / she / it He has been speaking. He has not been speaking. Has he been speaking?
Exceptions in Spelling
Exceptions in spelling when adding ing Example
final e is dropped
(but: ee is not changed)
come – coming
(but: agree – agreeing)
after a short, stressed vowel, the final consonant is doubled sit – sitting
l as final consonant after a vowel is doubled (in British English) travel – travelling
Final ie becomes y lie – lying
PRESENT PERFECT CONTINUOUS

2. • Puts emphasis on the duration or course of an action (not the
result)
Example: She has been writing for two hours.
They have been working for 24 Hrs.
• Action that recently stopped or is still going on.
Example: I have been living here since 2001.
I have been studying here since 2005.
• Finished action that influenced the present.
Example: I have been working all afternoon.
We have been swimming all day.
Use of Present Perfect Progressive