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" for plural subjects (I, you, we, they) and "has been" for singular subjects (he, she, it).
The present perfect form of the verb 'sit' is 'have sat.'
The present perfect form of "she knows" is "she has known."
The present perfect form of "they have think" is "they have thought."
The present perfect progressive form of "discuss" is "have been discussing."
The present perfect tense indicates that an action was completed at some point in the past with relevance to the present, using a form of "have" + past participle (e.g., "I have finished"). Present perfect progressive tense indicates an ongoing action that started in the past and continues into the present, using a form of "have been" + present participle (e.g., "I have been studying").
The present perfect progressive form of "sleep" is "has/have been sleeping."
Present perfect tense.
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".
The ellos form of the verb "hablar" in the present perfect tense is "han hablado."