could tool
Verbo regular: tool - tooled- tooled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could tool
you could tool
he could tool
we could tool
you could tool
they could tool 	I could be tooling
you could be tooling
he could be tooling
we could be tooling
you could be tooling
they could be tooling	I could have tooled
you could have tooled
he could have tooled
we could have tooled
you could have tooled
they could have tooled	I could have been tooling
you could have been tooling
he could have been tooling
we could have been tooling
you could have been tooling
they could have been tooling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't tool
you couldn't tool
he couldn't tool
we couldn't tool
you couldn't tool
they couldn't tool 	I couldn't be tooling
you couldn't be tooling
he couldn't be tooling
we couldn't be tooling
you couldn't be tooling
they couldn't be tooling	I couldn't have tooled
you couldn't have tooled
he couldn't have tooled
we couldn't have tooled
you couldn't have tooled
they couldn't have tooled	I couldn't have been tooling
you couldn't have been tooling
he couldn't have been tooling
we couldn't have been tooling
you couldn't have been tooling
they couldn't have been tooling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I tool?
could you tool?
could he tool?
could we tool?
could you tool?
could they tool? 	could I be tooling?
could you be tooling?
could he be tooling?
could we be tooling?
could you be tooling?
could they be tooling? 	could I have tooled?
could you have tooled?
could he have tooled?
could we have tooled?
could you have tooled?
could they have tooled? 	could I have been tooling?
could you have been tooling?
could he have been tooling?
could we have been tooling?
could you have been tooling?
could they have been tooling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I tool?
couldn't you tool?
couldn't he tool?
couldn't we tool?
couldn't you tool?
couldn't they tool? 	couldn't I be tooling?
couldn't you be tooling?
couldn't he be tooling?
couldn't we be tooling?
couldn't you be tooling?
couldn't they be tooling? 	couldn't I have tooled?
couldn't you have tooled?
couldn't he have tooled?
couldn't we have tooled?
couldn't you have tooled?
couldn't they have tooled? 	couldn't I have been tooling?
couldn't you have been tooling?
couldn't he have been tooling?
couldn't we have been tooling?
couldn't you have been tooling?
couldn't they have been tooling?