What is the present perfect of see?
philosophy-question.com › library › lectureThe present perfect tense is used when talking about experiences from the past, a change or a situation that has happened in the past but is still continuing today. This tense is an important part of English grammar since it demonstrates that actions or events in the past have an effect on the present situation.
Present Perfect Tense - Grammarly
https://www.grammarly.com/blog/present-perfect-tensePresent Perfect Tense. Grammarly. Grammar. The present perfect tense refers to an action or state that either occurred at an indefinite time in the past (e.g., we have talked before) or began in the past and continued to the present time (e.g., he has grown impatient over the last hour). This tense is formed by have/has + the past participle.