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Present perfect continuous is formed by - have / has been verb + ing.
have been waiting.
But know is a state verb and state verbs are not usually used in the continuous form eg knowing.
So probably you would never use have been knowing.
I have been knowing him for 15 years is not correct.
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∙ 12y ago
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What is the present perfect tense of know?
The present perfect tense of "know" is "have known."
What is the present perfect tense of the word know?
The present perfect tense of "know" is "have known."
How can you know if the sentence is perfect progressive tenses?
A sentence in the perfect progressive tense includes a form of "have" + "been" + the present participle "-ing" form of the verb (e.g., "I have been studying"). The usage indicates that an action started in the past, continued, and is still in progress at the time of speaking.
Are there irregular verbs in the imperfect progressive tense In Spanish?
No, there are no irregular verbs in the imperfect progressive tense in Spanish. The imperfect progressive tense is formed by combining the imperfect tense of the verb "estar" with the present participle of the main verb, which follows a regular pattern for all verbs.
Is know present tense or past tense?
"Know" is present tense. The past tense of "know" is "knew."
What is the present perfect tense of know?
The present perfect tense of "know" is "have known."
What is the present perfect tense of known?
Known is the past participle of know. The present perfect tense of know is have/has known.
What is the present perfect of known?
Known is the past participle of know. The present perfect tense of know is have/has known.
What is the present perfect tense of the word know?
The present perfect tense of "know" is "have known."
How can you know if the sentence is perfect progressive tenses?
A sentence in the perfect progressive tense includes a form of "have" + "been" + the present participle "-ing" form of the verb (e.g., "I have been studying"). The usage indicates that an action started in the past, continued, and is still in progress at the time of speaking.
What is the difference between still saw and still seeing?
I'm not that good in English literature, but as far as i know "still saw" = past perfect tense "still seeing" = present progressive tense hope it helps.....
Are there irregular verbs in the imperfect progressive tense In Spanish?
No, there are no irregular verbs in the imperfect progressive tense in Spanish. The imperfect progressive tense is formed by combining the imperfect tense of the verb "estar" with the present participle of the main verb, which follows a regular pattern for all verbs.
Is know present tense or past tense?
"Know" is present tense. The past tense of "know" is "knew."
What is the future perfect tense of know?
The future perfect tense of "know" is "will have known."
Is the word knowing in present tense?
No, "knowing" is not present tense. In present tense, it would be "know." "Knowing" is the present participle form of the verb "know."
What is the present tense of knew?
The present tense of 'knew' is 'know'.
What is the present tense of known?
Known is the past participle of know know / knows = present tense knew = past tense known = past participle knowing = present participle
