I'm in the park.
I was in the park a few minites ago.
I like to play football.
I used to like playing football
I am eating a hamburger.
I ate a hamburger.
I am driving a cart.
I drived a cart last week.
I am going to my grandparents.
I was going to my grandparents last month.
I am visiting my aunt.
I visited my aunt in september