could simulate
Verbo regular: simulate - simulated- simulated

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could simulate
you could simulate
she could simulate
we could simulate
you could simulate
they could simulate 	I could be simulating
you could be simulating
she could be simulating
we could be simulating
you could be simulating
they could be simulating	I could have simulated
you could have simulated
she could have simulated
we could have simulated
you could have simulated
they could have simulated	I could have been simulating
you could have been simulating
she could have been simulating
we could have been simulating
you could have been simulating
they could have been simulating	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't simulate
you couldn't simulate
she couldn't simulate
we couldn't simulate
you couldn't simulate
they couldn't simulate 	I couldn't be simulating
you couldn't be simulating
she couldn't be simulating
we couldn't be simulating
you couldn't be simulating
they couldn't be simulating	I couldn't have simulated
you couldn't have simulated
she couldn't have simulated
we couldn't have simulated
you couldn't have simulated
they couldn't have simulated	I couldn't have been simulating
you couldn't have been simulating
she couldn't have been simulating
we couldn't have been simulating
you couldn't have been simulating
they couldn't have been simulating	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I simulate?
could you simulate?
could she simulate?
could we simulate?
could you simulate?
could they simulate? 	could I be simulating?
could you be simulating?
could she be simulating?
could we be simulating?
could you be simulating?
could they be simulating? 	could I have simulated?
could you have simulated?
could she have simulated?
could we have simulated?
could you have simulated?
could they have simulated? 	could I have been simulating?
could you have been simulating?
could she have been simulating?
could we have been simulating?
could you have been simulating?
could they have been simulating? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I simulate?
couldn't you simulate?
couldn't she simulate?
couldn't we simulate?
couldn't you simulate?
couldn't they simulate? 	couldn't I be simulating?
couldn't you be simulating?
couldn't she be simulating?
couldn't we be simulating?
couldn't you be simulating?
couldn't they be simulating? 	couldn't I have simulated?
couldn't you have simulated?
couldn't she have simulated?
couldn't we have simulated?
couldn't you have simulated?
couldn't they have simulated? 	couldn't I have been simulating?
couldn't you have been simulating?
couldn't she have been simulating?
couldn't we have been simulating?
couldn't you have been simulating?
couldn't they have been simulating?