could memorise
Verbo regular: memorise - memorised- memorised

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could memorise
you could memorise
he could memorise
we could memorise
you could memorise
they could memorise 	I could be memorising
you could be memorising
he could be memorising
we could be memorising
you could be memorising
they could be memorising	I could have memorised
you could have memorised
he could have memorised
we could have memorised
you could have memorised
they could have memorised	I could have been memorising
you could have been memorising
he could have been memorising
we could have been memorising
you could have been memorising
they could have been memorising	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't memorise
you couldn't memorise
he couldn't memorise
we couldn't memorise
you couldn't memorise
they couldn't memorise 	I couldn't be memorising
you couldn't be memorising
he couldn't be memorising
we couldn't be memorising
you couldn't be memorising
they couldn't be memorising	I couldn't have memorised
you couldn't have memorised
he couldn't have memorised
we couldn't have memorised
you couldn't have memorised
they couldn't have memorised	I couldn't have been memorising
you couldn't have been memorising
he couldn't have been memorising
we couldn't have been memorising
you couldn't have been memorising
they couldn't have been memorising	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I memorise?
could you memorise?
could he memorise?
could we memorise?
could you memorise?
could they memorise? 	could I be memorising?
could you be memorising?
could he be memorising?
could we be memorising?
could you be memorising?
could they be memorising? 	could I have memorised?
could you have memorised?
could he have memorised?
could we have memorised?
could you have memorised?
could they have memorised? 	could I have been memorising?
could you have been memorising?
could he have been memorising?
could we have been memorising?
could you have been memorising?
could they have been memorising? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I memorise?
couldn't you memorise?
couldn't he memorise?
couldn't we memorise?
couldn't you memorise?
couldn't they memorise? 	couldn't I be memorising?
couldn't you be memorising?
couldn't he be memorising?
couldn't we be memorising?
couldn't you be memorising?
couldn't they be memorising? 	couldn't I have memorised?
couldn't you have memorised?
couldn't he have memorised?
couldn't we have memorised?
couldn't you have memorised?
couldn't they have memorised? 	couldn't I have been memorising?
couldn't you have been memorising?
couldn't he have been memorising?
couldn't we have been memorising?
couldn't you have been memorising?
couldn't they have been memorising?