What is the present perfect tense of the verb “study”? Norman-- algebra
A) Studied
B) Had studied
C) Will have studied
D) Has studied?

Hint: The present perfect is a grammatical mixture of present tense and perfect aspect used to express a past occurrence with current consequences. Have/has + the past participle form this tense.

Complete answer:
The present perfect tense describes an event or state that happened at an arbitrary point in the past (example: we have met before) or started in the past and continued to the present time (e.g., he has grown impatient over the last hour).

This verb tense's construction is clear. The first aspect, depending on the subject with which the verb is conjugated, is have or has. The second component is the verb's past participle, which is typically formed by adding -ed or -d to the verb's root (example: walked, washed, typed, jumped, laughed), though there are a few irregular past participles in English. (example: gone, known, won, done, said, etc.)

Now, to find the present perfect tense of study:
Has/have+ past participle of study.
This gives us, Has/have studied.

Now let us look into the given options:
Option A) Studied: It is incorrect because it is not the past perfect tense of study. It is simply past tense.
Option B) had studied: This is incorrect because it is not the past perfect tense of study.
Option C) Will have studied: It is incorrect because it is the future perfect tense
Option D) Has studied: This is the correct option because past perfect tense is formed by have/has + the past participle form this tense. So, the correct answer is has studied.

Thus the correct answer is is option ‘D’.

Note:
- The most important thing to note about the present perfect is that it cannot be used while you are describing a particular event.
- The present perfect can be used to describe the period of something that began in the past and is still ongoing.
- Anything that happened or was the state of things at an unspecified time in the past can be defined using the present perfect.