I sit on the chair. 

I am sitting on a bench. 

I am sitting on the floor. 

I've done my homework. 

I made a summary. 

I made a present. 

I break stone. 

I break my compass. 

I break my arm. 

I run to school. 

I run to the section. 

I'm running to the gym. 

I am writing a dictation. 

I am writing a congratulations. 

I'm writing an essay.