The past perfect continuous tense, also known as the past perfect progressive, is used to put an emphasis on the process of an action that took place before or up to a certain past time rather than its completion.
It is similar to the present perfect continous tense but is used to express past actions. Signal words for the past perfect progressive tense include all day, the whole week, for an hour, since 5 o'clock, etc., and refer to the past.
Conjugation
Rule 1: To form the past perfect continuous tense, we use the same structure had + been + verb in the -ing form for all persons.
Here is an overview of how to conjugate the past perfect continuous in positive, negative and interrogative sentences:
| Person | Positive | Negative | Question |
|---|---|---|---|
| I / you / we / they; he / she / it | I had been thinking. | She had not been thinking. | Had they been thinking? |
Note: In spoken and informal English, we can also use contractions in the past perfect continuous tense - a short combination of the verb had and particle not.
Here's an overview of contractions for the past perfect continuous tense:
| Long Form | Contraction | Example |
|---|---|---|
| had | 'd | they'd |
| had not | 'd not / hadn't | they'd not / they hadn't |
Usage
Rule 2: We use the past perfect continuous tense to describe an action that started before a certain time in the past and was interrupted by a second action.
Note: The past perfect continuous tense isn't often used in spoken English and is frequently replaced with past continous for simplicity.
Rule 3: We use the past perfect continuous tense to describe an action that started and ended before a certain time in the past but the effect of this action was still important at that moment.
Rule 4: We use the past perfect continuous tense to describe an action that started before a certain time in the past and wasn’t completed at that time.
Note: Sometimes, we can use past perfect instead of past perfect continuous to change the focus of the sentence from the duration of an action to its completion.
Quiz
1/4Complete the sentence. He wasn't at the party last night because he ___ been working all night.