What is the present perfect tense
The present perfect tense is used to describe actions or events that have taken place at an unspecified time before now, or that started in the past and continue in the present. It is used to talk about experiences, changes, and achievements.
Formula:
The present perfect tense is formed using the auxiliary verb "have" (or "has" for third-person singular) followed by the past participle of the main verb.
Examples:
I have been to New York.
She has learned French.
They have lived in Paris for five years.
Uses:
To describe experiences: The present perfect tense is used to talk about experiences that have happened at an unspecified time before now.
Example: I have been to Spain twice.
To describe changes: The present perfect tense is used to describe changes that have taken place over a period of time.
Example: The city has changed a lot since I was a child.
To describe achievements: The present perfect tense is used to talk about achievements or accomplishments that have been made.
Example: She has won three Olympic medals.