To study
Present: study, studies
The students study their verb examples.
Past: studied
The students studied for an hour.
Future: will study, shall study
The students shall study on a regular basis.
Present Perfect: has studied, have studied
The students have studied a lot for this quiz.
Past Perfect: had studied
The students had studied before they played their video games.
Future Perfect: will have studied, shall have studied
The students will have studied before they play their video games.
Present Progressive: is studying
She is studying her algebra homework.
Past Progressive: was studying, were studying
They were studying their French sentences in study hall.
Future Progressive: will be studying
Mr. Stowell's class will be studying tonight!
Present Perfect Progressive: has been studying
He has been studying for seven days.
Past Perfect Progressive: had been studying
He had been studying when his dog ate his homework.
Future Perfect Progressive: will have been studying
We will have been studying for three hours by dinnertime.