An example of this is "She has had a lot of work to do"
yes
The word "has" is not a future perfect verb. It is a present tense verb that functions as a helping verb for forming perfect tenses. In future perfect tense, "has" is combined with the auxiliary verb "will have" to show an action that will be completed at some point in the future.
Neither. It is a form of the linking verb 'become' (is now). The present perfect tense of a verb uses "has" or "have" as a helper verb.
"have tried" is the present perfect tense.
"They have" is the subject and auxiliary verb parts of the present perfect tense. Following these should be a past participle of a verb to complete the tense.
"You have" is present perfect tense.
The present perfect tense of the verb "study" is "have studied."
Present perfect tense.
The present perfect tense of the verb "study" is "have studied."
The present perfect tense of the verb "practice" is "have practiced" or "has practiced."
Have been is a verb phrase.As it is used in this sentence the verb have is a helping or auxiliary verb
To form the present perfect tense, a past participle must be combined with the helping verbs, have, or has (present tense). In this case the verb is 'to be' and its past participle is 'been.' The answer is, "He has been ill."