A present perfect progressive is a verb that is describing a continuous action that was finished at some point in the past.
Examples:
I have been walking.
You have been sleeping.
The present perfect progressive verb, also known as the present perfect continuous, is a verb tense that indicates an action started in the past, is ongoing in the present, and may continue into the future. It is formed by using "have been" or "has been" with the present participle (-ing form) of the main verb. For example, "I have been studying" or "She has been working."
The present perfect continuous is used to show that something started in the past and has continued up until now.
There are four progressive verb forms in English: present progressive (am/is/are + verb+ing), past progressive (was/were + verb+ing), future progressive (will be + verb+ing), and present perfect progressive (has/have been + verb+ing).
Present perfect progressive tense.
To form the progressive tense, use a form of "to be" (am, is, are) followed by the present participle (verb + ing). For example, in the sentence "She is reading a book," "is" is the auxiliary verb and "reading" is the present participle.
To form the progressive tense of a verb, you typically add a form of "to be" (am, is, are, was, were) before the present participle of the verb. For example, in the sentence "I am eating," "am" is the form of "to be" and "eating" is the present participle of the verb "eat."
It has auxiliary verbs before present participle (-ing form of a verb).Examples with jumping as the present participle:The past perfect progressive is formed with had + been + jumping. I/we/you/he/she/it had been jumping.The present perfect progressive is formed with has/have + been + jumping. I/we/you/they have been jumping, he/she has been jumping.The future perfect progressive is formed with will + have + been + jumping. I/we/you/he/she/they will have been jumping.
There are four progressive verb forms in English: present progressive (am/is/are + verb+ing), past progressive (was/were + verb+ing), future progressive (will be + verb+ing), and present perfect progressive (has/have been + verb+ing).
The present perfect progressive tense of the verb "to investigate" is "have been investigating."
The progressive tense has the form - be + present participle.eg is/was watching.The tense of the be verb determines the tense of the progressive verb form.eg was watching is past progressive. is watching is present progressive.With an auxiliary verb have or has the present perfect progressive is formed.eg have been watching, has been watchingWith had the past perfect progressive is formed:eg had been watching
Present perfect progressive tense.
Have/Has been performing.
To form the progressive tense, use a form of "to be" (am, is, are) followed by the present participle (verb + ing). For example, in the sentence "She is reading a book," "is" is the auxiliary verb and "reading" is the present participle.
"Has collected" is Present Perfect, because an auxiliary verb "to have" is in the present tense.
To form the progressive tense of a verb, you typically add a form of "to be" (am, is, are, was, were) before the present participle of the verb. For example, in the sentence "I am eating," "am" is the form of "to be" and "eating" is the present participle of the verb "eat."
The future present perfect progressive tense of principal verb consists of "will* have been + {present participle of the principal verb}"; the present perfect tense of a principal verb consists of "have** been + {present participle of the principal verb}"; and the past perfect progressive tense consists of "had been + {present participle of the principal verb}". These tense are only rarely used. ___________________________ *"Shall" is substituted for "will" if the subject is in the first person or to show emphasis if the subject is in second or third person. **"Has" is substituted for "have" if the subject is in the third person singular only.
To create the past perfect progressive, on needs the auxiliary verbs had & been and a present participle. Present participles always ending in -ing.The verb run in the past perfect progressive is had been running.
It has auxiliary verbs before present participle (-ing form of a verb).Examples with jumping as the present participle:The past perfect progressive is formed with had + been + jumping. I/we/you/he/she/it had been jumping.The present perfect progressive is formed with has/have + been + jumping. I/we/you/they have been jumping, he/she has been jumping.The future perfect progressive is formed with will + have + been + jumping. I/we/you/he/she/they will have been jumping.
Present Progressive:I am dreaming.He/She/It is dreaming.You/We/They are dreaming.Present Perfect Progressive:I/You/We/They have been dreaming.He/She/It has been dreaming.Past Progressive:I/He/She/It was dreaming.You/We/They were dreaming.Past Perfect Progressive:Had been dreaming.Future Progressive:Will be dreaming.Future Perfect Progressive:Will have been dreaming.