could elongate
Regular verb: elongate - elongated- elongated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could elongate
you could elongate
he could elongate
we could elongate
you could elongate
they could elongate 	I could be elongating
you could be elongating
he could be elongating
we could be elongating
you could be elongating
they could be elongating	I could have elongated
you could have elongated
he could have elongated
we could have elongated
you could have elongated
they could have elongated	I could have been elongating
you could have been elongating
he could have been elongating
we could have been elongating
you could have been elongating
they could have been elongating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not elongate
you could not elongate
he could not elongate
we could not elongate
you could not elongate
they could not elongate 	I could not be elongating
you could not be elongating
he could not be elongating
we could not be elongating
you could not be elongating
they could not be elongating	I could not have elongated
you could not have elongated
he could not have elongated
we could not have elongated
you could not have elongated
they could not have elongated	I could not have been elongating
you could not have been elongating
he could not have been elongating
we could not have been elongating
you could not have been elongating
they could not have been elongating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I elongate?
could you elongate?
could he elongate?
could we elongate?
could you elongate?
could they elongate? 	could I be elongating?
could you be elongating?
could he be elongating?
could we be elongating?
could you be elongating?
could they be elongating? 	could I have elongated?
could you have elongated?
could he have elongated?
could we have elongated?
could you have elongated?
could they have elongated? 	could I have been elongating?
could you have been elongating?
could he have been elongating?
could we have been elongating?
could you have been elongating?
could they have been elongating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not elongate?
could you not elongate?
could he not elongate?
could we not elongate?
could you not elongate?
could they not elongate? 	could I not be elongating?
could you not be elongating?
could he not be elongating?
could we not be elongating?
could you not be elongating?
could they not be elongating? 	could I not have elongated?
could you not have elongated?
could he not have elongated?
could we not have elongated?
could you not have elongated?
could they not have elongated? 	could I not have been elongating?
could you not have been elongating?
could he not have been elongating?
could we not have been elongating?
could you not have been elongating?
could they not have been elongating?