Step-by-step explanation:
Form the present perfect with the present simple form of verb + past participle
The present perfect is formed from the present tense of the verb have and the past participle of a verb.
•We use the present perfect:
-for something that started in the past and continues in the present:
for example :
-They've been married for nearly fifty years.
They've been married for nearly fifty years.-She has lived in Liverpool all her life.
-when we are talking about our experience up to the present