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 <em>have discovered</em> 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:
