could shoal
Verbo regular: shoal - shoaled- shoaled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could shoal
you could shoal
he could shoal
we could shoal
you could shoal
they could shoal 	I could be shoaling
you could be shoaling
he could be shoaling
we could be shoaling
you could be shoaling
they could be shoaling	I could have shoaled
you could have shoaled
he could have shoaled
we could have shoaled
you could have shoaled
they could have shoaled	I could have been shoaling
you could have been shoaling
he could have been shoaling
we could have been shoaling
you could have been shoaling
they could have been shoaling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't shoal
you couldn't shoal
he couldn't shoal
we couldn't shoal
you couldn't shoal
they couldn't shoal 	I couldn't be shoaling
you couldn't be shoaling
he couldn't be shoaling
we couldn't be shoaling
you couldn't be shoaling
they couldn't be shoaling	I couldn't have shoaled
you couldn't have shoaled
he couldn't have shoaled
we couldn't have shoaled
you couldn't have shoaled
they couldn't have shoaled	I couldn't have been shoaling
you couldn't have been shoaling
he couldn't have been shoaling
we couldn't have been shoaling
you couldn't have been shoaling
they couldn't have been shoaling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I shoal?
could you shoal?
could he shoal?
could we shoal?
could you shoal?
could they shoal? 	could I be shoaling?
could you be shoaling?
could he be shoaling?
could we be shoaling?
could you be shoaling?
could they be shoaling? 	could I have shoaled?
could you have shoaled?
could he have shoaled?
could we have shoaled?
could you have shoaled?
could they have shoaled? 	could I have been shoaling?
could you have been shoaling?
could he have been shoaling?
could we have been shoaling?
could you have been shoaling?
could they have been shoaling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I shoal?
couldn't you shoal?
couldn't he shoal?
couldn't we shoal?
couldn't you shoal?
couldn't they shoal? 	couldn't I be shoaling?
couldn't you be shoaling?
couldn't he be shoaling?
couldn't we be shoaling?
couldn't you be shoaling?
couldn't they be shoaling? 	couldn't I have shoaled?
couldn't you have shoaled?
couldn't he have shoaled?
couldn't we have shoaled?
couldn't you have shoaled?
couldn't they have shoaled? 	couldn't I have been shoaling?
couldn't you have been shoaling?
couldn't he have been shoaling?
couldn't we have been shoaling?
couldn't you have been shoaling?
couldn't they have been shoaling?