could whelp
Verbo regular: whelp - whelped- whelped

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could whelp
you could whelp
he could whelp
we could whelp
you could whelp
they could whelp 	I could be whelping
you could be whelping
he could be whelping
we could be whelping
you could be whelping
they could be whelping	I could have whelped
you could have whelped
he could have whelped
we could have whelped
you could have whelped
they could have whelped	I could have been whelping
you could have been whelping
he could have been whelping
we could have been whelping
you could have been whelping
they could have been whelping	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't whelp
you couldn't whelp
he couldn't whelp
we couldn't whelp
you couldn't whelp
they couldn't whelp 	I couldn't be whelping
you couldn't be whelping
he couldn't be whelping
we couldn't be whelping
you couldn't be whelping
they couldn't be whelping	I couldn't have whelped
you couldn't have whelped
he couldn't have whelped
we couldn't have whelped
you couldn't have whelped
they couldn't have whelped	I couldn't have been whelping
you couldn't have been whelping
he couldn't have been whelping
we couldn't have been whelping
you couldn't have been whelping
they couldn't have been whelping	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I whelp?
could you whelp?
could he whelp?
could we whelp?
could you whelp?
could they whelp? 	could I be whelping?
could you be whelping?
could he be whelping?
could we be whelping?
could you be whelping?
could they be whelping? 	could I have whelped?
could you have whelped?
could he have whelped?
could we have whelped?
could you have whelped?
could they have whelped? 	could I have been whelping?
could you have been whelping?
could he have been whelping?
could we have been whelping?
could you have been whelping?
could they have been whelping? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I whelp?
couldn't you whelp?
couldn't he whelp?
couldn't we whelp?
couldn't you whelp?
couldn't they whelp? 	couldn't I be whelping?
couldn't you be whelping?
couldn't he be whelping?
couldn't we be whelping?
couldn't you be whelping?
couldn't they be whelping? 	couldn't I have whelped?
couldn't you have whelped?
couldn't he have whelped?
couldn't we have whelped?
couldn't you have whelped?
couldn't they have whelped? 	couldn't I have been whelping?
couldn't you have been whelping?
couldn't he have been whelping?
couldn't we have been whelping?
couldn't you have been whelping?
couldn't they have been whelping?