could park
Verbo regular: park - parked- parked

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could park
you could park
he could park
we could park
you could park
they could park 	I could be parking
you could be parking
he could be parking
we could be parking
you could be parking
they could be parking	I could have parked
you could have parked
he could have parked
we could have parked
you could have parked
they could have parked	I could have been parking
you could have been parking
he could have been parking
we could have been parking
you could have been parking
they could have been parking	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not park
you could not park
he could not park
we could not park
you could not park
they could not park 	I could not be parking
you could not be parking
he could not be parking
we could not be parking
you could not be parking
they could not be parking	I could not have parked
you could not have parked
he could not have parked
we could not have parked
you could not have parked
they could not have parked	I could not have been parking
you could not have been parking
he could not have been parking
we could not have been parking
you could not have been parking
they could not have been parking	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I park?
could you park?
could he park?
could we park?
could you park?
could they park? 	could I be parking?
could you be parking?
could he be parking?
could we be parking?
could you be parking?
could they be parking? 	could I have parked?
could you have parked?
could he have parked?
could we have parked?
could you have parked?
could they have parked? 	could I have been parking?
could you have been parking?
could he have been parking?
could we have been parking?
could you have been parking?
could they have been parking? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not park?
could you not park?
could he not park?
could we not park?
could you not park?
could they not park? 	could I not be parking?
could you not be parking?
could he not be parking?
could we not be parking?
could you not be parking?
could they not be parking? 	could I not have parked?
could you not have parked?
could he not have parked?
could we not have parked?
could you not have parked?
could they not have parked? 	could I not have been parking?
could you not have been parking?
could he not have been parking?
could we not have been parking?
could you not have been parking?
could they not have been parking?