could tar
Verbo regular: tar - tarred- tarred

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could tar
you could tar
she could tar
we could tar
you could tar
they could tar 	I could be tarring
you could be tarring
she could be tarring
we could be tarring
you could be tarring
they could be tarring	I could have tarred
you could have tarred
she could have tarred
we could have tarred
you could have tarred
they could have tarred	I could have been tarring
you could have been tarring
she could have been tarring
we could have been tarring
you could have been tarring
they could have been tarring	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could not tar
you could not tar
she could not tar
we could not tar
you could not tar
they could not tar 	I could not be tarring
you could not be tarring
she could not be tarring
we could not be tarring
you could not be tarring
they could not be tarring	I could not have tarred
you could not have tarred
she could not have tarred
we could not have tarred
you could not have tarred
they could not have tarred	I could not have been tarring
you could not have been tarring
she could not have been tarring
we could not have been tarring
you could not have been tarring
they could not have been tarring	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I tar?
could you tar?
could she tar?
could we tar?
could you tar?
could they tar? 	could I be tarring?
could you be tarring?
could she be tarring?
could we be tarring?
could you be tarring?
could they be tarring? 	could I have tarred?
could you have tarred?
could she have tarred?
could we have tarred?
could you have tarred?
could they have tarred? 	could I have been tarring?
could you have been tarring?
could she have been tarring?
could we have been tarring?
could you have been tarring?
could they have been tarring? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I not tar?
could you not tar?
could she not tar?
could we not tar?
could you not tar?
could they not tar? 	could I not be tarring?
could you not be tarring?
could she not be tarring?
could we not be tarring?
could you not be tarring?
could they not be tarring? 	could I not have tarred?
could you not have tarred?
could she not have tarred?
could we not have tarred?
could you not have tarred?
could they not have tarred? 	could I not have been tarring?
could you not have been tarring?
could she not have been tarring?
could we not have been tarring?
could you not have been tarring?
could they not have been tarring?