could tar
Verbo regular: tar - tarred- tarred

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could tar
you could tar
he could tar
we could tar
you could tar
they could tar 	I could be tarring
you could be tarring
he could be tarring
we could be tarring
you could be tarring
they could be tarring	I could have tarred
you could have tarred
he 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
he could have been tarring
we could have been tarring
you could have been tarring
they could have been tarring	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not tar
you could not tar
he 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
he 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
he 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
he 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 con V-ing 	Perfecto 	Perfecto con V-ing 	
could I tar?
could you tar?
could he tar?
could we tar?
could you tar?
could they tar? 	could I be tarring?
could you be tarring?
could he be tarring?
could we be tarring?
could you be tarring?
could they be tarring? 	could I have tarred?
could you have tarred?
could he 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 he have been tarring?
could we have been tarring?
could you have been tarring?
could they have been tarring? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not tar?
could you not tar?
could he 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 he 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 he 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 he not have been tarring?
could we not have been tarring?
could you not have been tarring?
could they not have been tarring?