PRESENT PERFECT CONTINUOUS TENSE & PAST PERFECT CONTINUOUS TENSE
Present Perfect Continuous Tense is used to express an action which started before now ( or in the past ) and has continued up until now ( or into the present ) . The action may not be finish at that time. This action may still be continuing or may have just finished.
( In such sentenses, Present Perfect Continuous Tense emphasizes the process or the duration of the event or state. The tense connect the past with the present. )
- She has been cleaning the room since morning.
- They have been studying for the math exam the whole day.
- He has been running that company for 10 years..
- I have been reading this novel for 5 days.
- We have been talking with Lisa for hours.
Past Perfect Continuous Tense is used to express a past action which started in the past and continued to happen after another action or time in the past.
( In such sentences, Past Perfect Continuous Tense tell us “how long the action had continued” or ” the duration of the action” is emphasized more in this tense. Namely, Past Perfect Continuous Tense tells us that an event happened and continued for a certain period of time in the past, not in the present)
- Tom had been sitting in the garden for 2 hours when his friends went to the cinema.
- We had been looking for the wallet for 2 hours when Susan found it.
- She had been writting reports since morning when the boss came the office.
- They had been celebrating their wedding anniversary for hours when David arrived.
- My wife had been cooking the meal since 4 o’clock when my father called us.
Shortly we can say;
The Past Perfect Continuous Tense is used in the same way as the Present Perfect Continuous Tense, but it refers to a time in the past. On the other hand, Present Perfect Continuous Tense refers to the time in the present ( now ).