Answer:
Have discovered - present perfect simple tense
Explanation:
The present perfect tense is a tense used to tell about events that took place in the past but have consequences in the present. There are two types of present perfect tense:
- Present perfect simple. This tense describes a completed action. It focuses on the result. The formula: have/has + past participle
- Present perfect continuous. This tense describes an activity that may continue. It focuses on the activity. The formula: have/has + been + present participle
We can see that the verb have discovered is an example of the present perfect simple tense.
You can see some more information about the present perfect simple tense in the image below:
