could tauten tauten
Verbo regular: tauten tauten - tauten tautened- tauten tautened

ón, este verbo puede no existir, se da como ejemplo la conjugación.

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could tauten tauten
you could tauten tauten
he could tauten tauten
we could tauten tauten
you could tauten tauten
they could tauten tauten 	I could be tauten tautening
you could be tauten tautening
he could be tauten tautening
we could be tauten tautening
you could be tauten tautening
they could be tauten tautening	I could have tauten tautened
you could have tauten tautened
he could have tauten tautened
we could have tauten tautened
you could have tauten tautened
they could have tauten tautened	I could have been tauten tautening
you could have been tauten tautening
he could have been tauten tautening
we could have been tauten tautening
you could have been tauten tautening
they could have been tauten tautening	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't tauten tauten
you couldn't tauten tauten
he couldn't tauten tauten
we couldn't tauten tauten
you couldn't tauten tauten
they couldn't tauten tauten 	I couldn't be tauten tautening
you couldn't be tauten tautening
he couldn't be tauten tautening
we couldn't be tauten tautening
you couldn't be tauten tautening
they couldn't be tauten tautening	I couldn't have tauten tautened
you couldn't have tauten tautened
he couldn't have tauten tautened
we couldn't have tauten tautened
you couldn't have tauten tautened
they couldn't have tauten tautened	I couldn't have been tauten tautening
you couldn't have been tauten tautening
he couldn't have been tauten tautening
we couldn't have been tauten tautening
you couldn't have been tauten tautening
they couldn't have been tauten tautening	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I tauten tauten?
could you tauten tauten?
could he tauten tauten?
could we tauten tauten?
could you tauten tauten?
could they tauten tauten? 	could I be tauten tautening?
could you be tauten tautening?
could he be tauten tautening?
could we be tauten tautening?
could you be tauten tautening?
could they be tauten tautening? 	could I have tauten tautened?
could you have tauten tautened?
could he have tauten tautened?
could we have tauten tautened?
could you have tauten tautened?
could they have tauten tautened? 	could I have been tauten tautening?
could you have been tauten tautening?
could he have been tauten tautening?
could we have been tauten tautening?
could you have been tauten tautening?
could they have been tauten tautening? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I tauten tauten?
couldn't you tauten tauten?
couldn't he tauten tauten?
couldn't we tauten tauten?
couldn't you tauten tauten?
couldn't they tauten tauten? 	couldn't I be tauten tautening?
couldn't you be tauten tautening?
couldn't he be tauten tautening?
couldn't we be tauten tautening?
couldn't you be tauten tautening?
couldn't they be tauten tautening? 	couldn't I have tauten tautened?
couldn't you have tauten tautened?
couldn't he have tauten tautened?
couldn't we have tauten tautened?
couldn't you have tauten tautened?
couldn't they have tauten tautened? 	couldn't I have been tauten tautening?
couldn't you have been tauten tautening?
couldn't he have been tauten tautening?
couldn't we have been tauten tautening?
couldn't you have been tauten tautening?
couldn't they have been tauten tautening?