passive is formed with be + past participle.
present simple:
asks ----- is asked, He is asked everyday to tidy his desk.
eat -------- are eaten. Small cakes are eaten at morning tea.
present perfect:
has asked ---- has been asked, He has been asked to tidy his desk.
has eaten --- have been eaten. All the cakes have been eaten
In simple present passive voice, the action is happening now and the focus is on the action itself. For example: "The cake is baked by Sarah." In present perfect passive voice, the action is completed and relevant to the present. For example: "The cake has been baked by Sarah."
To convert the present perfect continuous tense into passive voice, use "has been" or "have been" followed by the past participle of the main verb. For example, "They have been cooking" in present perfect continuous becomes "Cooking has been being done by them" in passive voice.
The italicized verb "examined" is in future perfect passive tense.
The present perfect continuous tense does have a passive form. For example, "The project has been being worked on for weeks." This passive form emphasizes the continuity of an action that started in the past and is still ongoing, often with implied or explicit consequences in the present.
The present perfect tense of "sing" in passive voice is "has been sung."
There is only one tense in the present tense, but within that tense, there are four aspects that includes simple present, present continuous, present perfect, and present perfect continuous.
have/has flown This above is present perfect active not passive. Passive is be verb + past participle He has been flown to hospital.
Present simple -- I live in Ekatahuna Present continuous -- I am living in Ekatahuna Present perfect -- I have lived in Ekatahuna Present perfect continuous -- I have been living in Ekatahuna Present simple passive -- The butter is kept in the fridge. Present continuous passive -- The butter is being kept in the fridge. Present perfect passive -- The butter has been kept in the fridge.
To convert the present perfect continuous tense into passive voice, use "has been" or "have been" followed by the past participle of the main verb. For example, "They have been cooking" in present perfect continuous becomes "Cooking has been being done by them" in passive voice.
The italicized verb "examined" is in future perfect passive tense.
Sure! "Star-crossed" can be written in present tense as "they are star-crossed."
The present perfect continuous tense does have a passive form. For example, "The project has been being worked on for weeks." This passive form emphasizes the continuity of an action that started in the past and is still ongoing, often with implied or explicit consequences in the present.
The present perfect tense of "sing" in passive voice is "has been sung."
what is the difference between present and past perfect? Write the grammatical structure
There is only one tense in the present tense, but within that tense, there are four aspects that includes simple present, present continuous, present perfect, and present perfect continuous.
The difference in meaning is that the action stated by a present perfect tense may have been completed in the last second of time before the present, while the past perfect implies completion at a substantially earlier time. The formal difference is that the present perfect is formed from the present tense of "have", used as an auxiliary verb, combined with the past participle of the principal verb. For the past perfect tense, the past tense of "have" as the auxiliary verb is combined with the past participle of the principal verb.
In active voice, the subject of the sentence performs the action. For example, "I have finished my homework." In passive voice, the subject receives the action. For example, "My homework has been finished by me." The main difference is that active voice focuses on the subject performing the action, while passive voice focuses on the object receiving the action.
Present perfect progressive and present perfect continuous refer to the same tense and are often used interchangeably. Both tenses indicate an action that started in the past and is ongoing or has just been completed. The choice between "progressive" and "continuous" is mainly a matter of dialect or personal preference.