Answer:(
Simple ) Present Indefinite Tense :
I eat mangoes often.
The Sun rises in the East.
( To describe regular, habitual, routine actions, and universal or scientific truths.)
Present Continuous Tense :
I am eating mangoes now.
( To describe an action which is going on at the time of speaking.)
Present Perfect Tense :
I have eaten a mango just now.
( To describe an action which has just now or recently been completed, and which has a connection with, or impact on, the present time or place.)
Step-by-step explanation: