Regular verbs
I open the window.
I OPENED the window.
I am happy.
I WAS happy.
They watch TV.
They WATCHED TV.
We knock on the door.
We KNOCKED on the door.
They go to school by bike.
They WENT to school by bike.
You behave like a child.
You BEHAVED like a child.
Mark acts in a film.
Mark ACTED in a film.
He gives her flowers.
He GAVE her flowers.
We hear some music.
We HEARD some music.
They fry eggs.
They FRIED eggs.
Bob takes photos.
Bob TOOK photos.
Tom plans to buy a house.
He PLANNED to buy a house.
She travels to Paris.
She TRAVELLED to Paris.
He says that she is beautiful.
He SAID that she WAS beautiful.
She thinks that they play tennis.
She THOUGHT that they PLAYED tennis.