could preedit
Verbo regular: preedit - preedited- preedited

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I could preedit
you could preedit
he could preedit
we could preedit
you could preedit
they could preedit 	I could be preediting
you could be preediting
he could be preediting
we could be preediting
you could be preediting
they could be preediting	I could have preedited
you could have preedited
he could have preedited
we could have preedited
you could have preedited
they could have preedited	I could have been preediting
you could have been preediting
he could have been preediting
we could have been preediting
you could have been preediting
they could have been preediting	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I couldn't preedit
you couldn't preedit
he couldn't preedit
we couldn't preedit
you couldn't preedit
they couldn't preedit 	I couldn't be preediting
you couldn't be preediting
he couldn't be preediting
we couldn't be preediting
you couldn't be preediting
they couldn't be preediting	I couldn't have preedited
you couldn't have preedited
he couldn't have preedited
we couldn't have preedited
you couldn't have preedited
they couldn't have preedited	I couldn't have been preediting
you couldn't have been preediting
he couldn't have been preediting
we couldn't have been preediting
you couldn't have been preediting
they couldn't have been preediting	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
could I preedit?
could you preedit?
could he preedit?
could we preedit?
could you preedit?
could they preedit? 	could I be preediting?
could you be preediting?
could he be preediting?
could we be preediting?
could you be preediting?
could they be preediting? 	could I have preedited?
could you have preedited?
could he have preedited?
could we have preedited?
could you have preedited?
could they have preedited? 	could I have been preediting?
could you have been preediting?
could he have been preediting?
could we have been preediting?
could you have been preediting?
could they have been preediting? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
couldn't I preedit?
couldn't you preedit?
couldn't he preedit?
couldn't we preedit?
couldn't you preedit?
couldn't they preedit? 	couldn't I be preediting?
couldn't you be preediting?
couldn't he be preediting?
couldn't we be preediting?
couldn't you be preediting?
couldn't they be preediting? 	couldn't I have preedited?
couldn't you have preedited?
couldn't he have preedited?
couldn't we have preedited?
couldn't you have preedited?
couldn't they have preedited? 	couldn't I have been preediting?
couldn't you have been preediting?
couldn't he have been preediting?
couldn't we have been preediting?
couldn't you have been preediting?
couldn't they have been preediting?