Answer and Explanation:
The present perfect tense of the sentence "All the students pays their fees" would be:
"All the students have paid their fees."
In the present perfect tense, we use the auxiliary verb "have" followed by the past participle form of the main verb. In this case, the main verb is "pay." The past participle form of "pay" is "paid."
Here are some examples of the present perfect tense in different forms:
- I have studied for my exams.
- She has finished her homework.
- They have traveled to many countries.
In each of these examples, the auxiliary verb "have" is used with the past participle form of the main verb to indicate an action that started in the past but is still relevant in the present.