could harm
Verbo regular: harm - harmed- harmed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could harm
you could harm
he could harm
we could harm
you could harm
they could harm 	I could be harming
you could be harming
he could be harming
we could be harming
you could be harming
they could be harming	I could have harmed
you could have harmed
he could have harmed
we could have harmed
you could have harmed
they could have harmed	I could have been harming
you could have been harming
he could have been harming
we could have been harming
you could have been harming
they could have been harming	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not harm
you could not harm
he could not harm
we could not harm
you could not harm
they could not harm 	I could not be harming
you could not be harming
he could not be harming
we could not be harming
you could not be harming
they could not be harming	I could not have harmed
you could not have harmed
he could not have harmed
we could not have harmed
you could not have harmed
they could not have harmed	I could not have been harming
you could not have been harming
he could not have been harming
we could not have been harming
you could not have been harming
they could not have been harming	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I harm?
could you harm?
could he harm?
could we harm?
could you harm?
could they harm? 	could I be harming?
could you be harming?
could he be harming?
could we be harming?
could you be harming?
could they be harming? 	could I have harmed?
could you have harmed?
could he have harmed?
could we have harmed?
could you have harmed?
could they have harmed? 	could I have been harming?
could you have been harming?
could he have been harming?
could we have been harming?
could you have been harming?
could they have been harming? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not harm?
could you not harm?
could he not harm?
could we not harm?
could you not harm?
could they not harm? 	could I not be harming?
could you not be harming?
could he not be harming?
could we not be harming?
could you not be harming?
could they not be harming? 	could I not have harmed?
could you not have harmed?
could he not have harmed?
could we not have harmed?
could you not have harmed?
could they not have harmed? 	could I not have been harming?
could you not have been harming?
could he not have been harming?
could we not have been harming?
could you not have been harming?
could they not have been harming?