Present Perfect Grammar Guide
Subject + have/has + past participle + object
The Present Perfect uses the verb to have in the present as an auxiliary verb, followed by the past participle form.
have not (haven't)/has not (hasn't) + participle
have/has + subject + participle....?
have/has + participle
The Present Perfect is often referred to as a bridge between the past and the present. The following functions are the most fundamental to present perfect use:
We use the Present Perfect to:
talk about EXPERIENCES in our lives. This does not need reference to time.
We do not give a reference to time in this use but we often use this structure with expressions of general time
talk about events or experiences that either continue in the present or have an impact on the present
talk about events or experiences that have recently been completed.