could punctuate
Verbo regular: punctuate - punctuated- punctuated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could punctuate
you could punctuate
he could punctuate
we could punctuate
you could punctuate
they could punctuate 	I could be punctuating
you could be punctuating
he could be punctuating
we could be punctuating
you could be punctuating
they could be punctuating	I could have punctuated
you could have punctuated
he could have punctuated
we could have punctuated
you could have punctuated
they could have punctuated	I could have been punctuating
you could have been punctuating
he could have been punctuating
we could have been punctuating
you could have been punctuating
they could have been punctuating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't punctuate
you couldn't punctuate
he couldn't punctuate
we couldn't punctuate
you couldn't punctuate
they couldn't punctuate 	I couldn't be punctuating
you couldn't be punctuating
he couldn't be punctuating
we couldn't be punctuating
you couldn't be punctuating
they couldn't be punctuating	I couldn't have punctuated
you couldn't have punctuated
he couldn't have punctuated
we couldn't have punctuated
you couldn't have punctuated
they couldn't have punctuated	I couldn't have been punctuating
you couldn't have been punctuating
he couldn't have been punctuating
we couldn't have been punctuating
you couldn't have been punctuating
they couldn't have been punctuating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I punctuate?
could you punctuate?
could he punctuate?
could we punctuate?
could you punctuate?
could they punctuate? 	could I be punctuating?
could you be punctuating?
could he be punctuating?
could we be punctuating?
could you be punctuating?
could they be punctuating? 	could I have punctuated?
could you have punctuated?
could he have punctuated?
could we have punctuated?
could you have punctuated?
could they have punctuated? 	could I have been punctuating?
could you have been punctuating?
could he have been punctuating?
could we have been punctuating?
could you have been punctuating?
could they have been punctuating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I punctuate?
couldn't you punctuate?
couldn't he punctuate?
couldn't we punctuate?
couldn't you punctuate?
couldn't they punctuate? 	couldn't I be punctuating?
couldn't you be punctuating?
couldn't he be punctuating?
couldn't we be punctuating?
couldn't you be punctuating?
couldn't they be punctuating? 	couldn't I have punctuated?
couldn't you have punctuated?
couldn't he have punctuated?
couldn't we have punctuated?
couldn't you have punctuated?
couldn't they have punctuated? 	couldn't I have been punctuating?
couldn't you have been punctuating?
couldn't he have been punctuating?
couldn't we have been punctuating?
couldn't you have been punctuating?
couldn't they have been punctuating?