could bid
Verbo irregular: bid - bid, bade- bid, bidden

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could bid
you could bid
he could bid
we could bid
you could bid
they could bid 	I could be bidding
you could be bidding
he could be bidding
we could be bidding
you could be bidding
they could be bidding	I could have bid, bidden
you could have bid, bidden
he could have bid, bidden
we could have bid, bidden
you could have bid, bidden
they could have bid, bidden	I could have been bidding
you could have been bidding
he could have been bidding
we could have been bidding
you could have been bidding
they could have been bidding	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't bid
you couldn't bid
he couldn't bid
we couldn't bid
you couldn't bid
they couldn't bid 	I couldn't be bidding
you couldn't be bidding
he couldn't be bidding
we couldn't be bidding
you couldn't be bidding
they couldn't be bidding	I couldn't have bid, bidden
you couldn't have bid, bidden
he couldn't have bid, bidden
we couldn't have bid, bidden
you couldn't have bid, bidden
they couldn't have bid, bidden	I couldn't have been bidding
you couldn't have been bidding
he couldn't have been bidding
we couldn't have been bidding
you couldn't have been bidding
they couldn't have been bidding	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I bid?
could you bid?
could he bid?
could we bid?
could you bid?
could they bid? 	could I be bidding?
could you be bidding?
could he be bidding?
could we be bidding?
could you be bidding?
could they be bidding? 	could I have bid, bidden?
could you have bid, bidden?
could he have bid, bidden?
could we have bid, bidden?
could you have bid, bidden?
could they have bid, bidden? 	could I have been bidding?
could you have been bidding?
could he have been bidding?
could we have been bidding?
could you have been bidding?
could they have been bidding? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I bid?
couldn't you bid?
couldn't he bid?
couldn't we bid?
couldn't you bid?
couldn't they bid? 	couldn't I be bidding?
couldn't you be bidding?
couldn't he be bidding?
couldn't we be bidding?
couldn't you be bidding?
couldn't they be bidding? 	couldn't I have bid, bidden?
couldn't you have bid, bidden?
couldn't he have bid, bidden?
couldn't we have bid, bidden?
couldn't you have bid, bidden?
couldn't they have bid, bidden? 	couldn't I have been bidding?
couldn't you have been bidding?
couldn't he have been bidding?
couldn't we have been bidding?
couldn't you have been bidding?
couldn't they have been bidding?