could underbake
Verbo regular: underbake - underbaked- underbaked

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could underbake
you could underbake
he could underbake
we could underbake
you could underbake
they could underbake 	I could be underbaking
you could be underbaking
he could be underbaking
we could be underbaking
you could be underbaking
they could be underbaking	I could have underbaked
you could have underbaked
he could have underbaked
we could have underbaked
you could have underbaked
they could have underbaked	I could have been underbaking
you could have been underbaking
he could have been underbaking
we could have been underbaking
you could have been underbaking
they could have been underbaking	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not underbake
you could not underbake
he could not underbake
we could not underbake
you could not underbake
they could not underbake 	I could not be underbaking
you could not be underbaking
he could not be underbaking
we could not be underbaking
you could not be underbaking
they could not be underbaking	I could not have underbaked
you could not have underbaked
he could not have underbaked
we could not have underbaked
you could not have underbaked
they could not have underbaked	I could not have been underbaking
you could not have been underbaking
he could not have been underbaking
we could not have been underbaking
you could not have been underbaking
they could not have been underbaking	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I underbake?
could you underbake?
could he underbake?
could we underbake?
could you underbake?
could they underbake? 	could I be underbaking?
could you be underbaking?
could he be underbaking?
could we be underbaking?
could you be underbaking?
could they be underbaking? 	could I have underbaked?
could you have underbaked?
could he have underbaked?
could we have underbaked?
could you have underbaked?
could they have underbaked? 	could I have been underbaking?
could you have been underbaking?
could he have been underbaking?
could we have been underbaking?
could you have been underbaking?
could they have been underbaking? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not underbake?
could you not underbake?
could he not underbake?
could we not underbake?
could you not underbake?
could they not underbake? 	could I not be underbaking?
could you not be underbaking?
could he not be underbaking?
could we not be underbaking?
could you not be underbaking?
could they not be underbaking? 	could I not have underbaked?
could you not have underbaked?
could he not have underbaked?
could we not have underbaked?
could you not have underbaked?
could they not have underbaked? 	could I not have been underbaking?
could you not have been underbaking?
could he not have been underbaking?
could we not have been underbaking?
could you not have been underbaking?
could they not have been underbaking?