could glissade
Verbo regular: glissade - glissaded- glissaded

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could glissade
you could glissade
he could glissade
we could glissade
you could glissade
they could glissade 	I could be glissading
you could be glissading
he could be glissading
we could be glissading
you could be glissading
they could be glissading	I could have glissaded
you could have glissaded
he could have glissaded
we could have glissaded
you could have glissaded
they could have glissaded	I could have been glissading
you could have been glissading
he could have been glissading
we could have been glissading
you could have been glissading
they could have been glissading	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't glissade
you couldn't glissade
he couldn't glissade
we couldn't glissade
you couldn't glissade
they couldn't glissade 	I couldn't be glissading
you couldn't be glissading
he couldn't be glissading
we couldn't be glissading
you couldn't be glissading
they couldn't be glissading	I couldn't have glissaded
you couldn't have glissaded
he couldn't have glissaded
we couldn't have glissaded
you couldn't have glissaded
they couldn't have glissaded	I couldn't have been glissading
you couldn't have been glissading
he couldn't have been glissading
we couldn't have been glissading
you couldn't have been glissading
they couldn't have been glissading	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I glissade?
could you glissade?
could he glissade?
could we glissade?
could you glissade?
could they glissade? 	could I be glissading?
could you be glissading?
could he be glissading?
could we be glissading?
could you be glissading?
could they be glissading? 	could I have glissaded?
could you have glissaded?
could he have glissaded?
could we have glissaded?
could you have glissaded?
could they have glissaded? 	could I have been glissading?
could you have been glissading?
could he have been glissading?
could we have been glissading?
could you have been glissading?
could they have been glissading? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I glissade?
couldn't you glissade?
couldn't he glissade?
couldn't we glissade?
couldn't you glissade?
couldn't they glissade? 	couldn't I be glissading?
couldn't you be glissading?
couldn't he be glissading?
couldn't we be glissading?
couldn't you be glissading?
couldn't they be glissading? 	couldn't I have glissaded?
couldn't you have glissaded?
couldn't he have glissaded?
couldn't we have glissaded?
couldn't you have glissaded?
couldn't they have glissaded? 	couldn't I have been glissading?
couldn't you have been glissading?
couldn't he have been glissading?
couldn't we have been glissading?
couldn't you have been glissading?
couldn't they have been glissading?