The present perfect is has/have + a past participle.
I have seen that movie already.
She has seen that movie, too.
As it does not have a third form (A Past Particle) we must replace CAN with TO BE ABLE TO. Therefore, the Present Perfect of CAN is HAS/HAVE BEEN ABLE TO.
I have been wondering about that myself! (That's the answer by the way)
The present perfect tense of "arise" is:I/You/We/They have arisen.He/She/It has arisen.
The present perfect tense of copy is:I/You/We/They have copied.He/She/It has copied.
The third form of the verb "be" is "been." It is used in perfect tenses, such as "has been" or "have been," to indicate a state or condition that started in the past and continues to the present.
The present perfect form of "present" is "have/has presented."
The present perfect form of "find" is "have found."
The present perfect form of to be is have been or has been.I have been in this town for two years.
The present perfect form of the verb 'sit' is 'have sat.'
The present perfect form of "they have think" is "they have thought."
The present perfect form of "she knows" is "she has known."
The present perfect progressive form of "discuss" is "have been discussing."
The present perfect progressive form of "sleep" is "has/have been sleeping."
Present perfect tense.
The ellos form of the verb "hablar" in the present perfect tense is "han hablado."
The present perfect tense of "form" is "have formed" (for plural subjects) or "has formed" (for singular subjects). It is formed by using the auxiliary verb "have" or "has" followed by the past participle of the verb "form".
"Has eaten" is the present perfect tense. "Eaten" is the past participle of "eat".