PRESENT TENSE

I follow my mother to her office because I don't have anything to do at home. In my mother's office room, I find a sasando instrument on the table. 

Then I try to play it. In fact, I can.

hey guys ! what is kind of tense that I use to write the sentences above ? do you know ?
Simple present tense ! Good job !

Simple present tense is a tense to express an event or an act that occur at the current time

Functions :

1 )to tell habits action.

Ex : I go to school everyday except Sunday

2)to tell general truth.

Ex : The world is round

3)to tell self identify

Ex : My name is Arin

Pattern : nominal verb = (+) S + tobe (is,am,are) +...
(-) S + tobe ( is,am,are ) + not +...
(?) tobe (is,amare) + S + ... ?

Verbal verb : (+) S + V1 (es/s) + O
(-) S + do/does + not + V1 + O
(?) Do/does + S + V1+ O ?

Time signal : always,normally,everyday,usually,etc