PRESENT SIMPLE/PRESENT CONTINUOUS/PAST SIMPLE:
1-Joaquin goes to the hospital./Joaquin is going to the hospital./Joaquin went to the hospital.
2-We grow flowers and vegetables./We are growing flowers and vegetables./We grew flowers and vegetables.
3-They write articles for the newspaper./They are writing articles for the newspaper./They wrote articles for the newspaper.
4-She buys a bigger car./She is buying a bigger car./She bought a bigger car.
5-He drives his father's jeep./He is driving his father's jeep./He drove his father's jeep.
6-You teach to your sister./You are teaching to your sister./You taught to your sister.