could preadjust
Regular verb: preadjust - preadjusted- preadjusted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could preadjust
you could preadjust
he could preadjust
we could preadjust
you could preadjust
they could preadjust 	I could be preadjusting
you could be preadjusting
he could be preadjusting
we could be preadjusting
you could be preadjusting
they could be preadjusting	I could have preadjusted
you could have preadjusted
he could have preadjusted
we could have preadjusted
you could have preadjusted
they could have preadjusted	I could have been preadjusting
you could have been preadjusting
he could have been preadjusting
we could have been preadjusting
you could have been preadjusting
they could have been preadjusting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't preadjust
you couldn't preadjust
he couldn't preadjust
we couldn't preadjust
you couldn't preadjust
they couldn't preadjust 	I couldn't be preadjusting
you couldn't be preadjusting
he couldn't be preadjusting
we couldn't be preadjusting
you couldn't be preadjusting
they couldn't be preadjusting	I couldn't have preadjusted
you couldn't have preadjusted
he couldn't have preadjusted
we couldn't have preadjusted
you couldn't have preadjusted
they couldn't have preadjusted	I couldn't have been preadjusting
you couldn't have been preadjusting
he couldn't have been preadjusting
we couldn't have been preadjusting
you couldn't have been preadjusting
they couldn't have been preadjusting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I preadjust?
could you preadjust?
could he preadjust?
could we preadjust?
could you preadjust?
could they preadjust? 	could I be preadjusting?
could you be preadjusting?
could he be preadjusting?
could we be preadjusting?
could you be preadjusting?
could they be preadjusting? 	could I have preadjusted?
could you have preadjusted?
could he have preadjusted?
could we have preadjusted?
could you have preadjusted?
could they have preadjusted? 	could I have been preadjusting?
could you have been preadjusting?
could he have been preadjusting?
could we have been preadjusting?
could you have been preadjusting?
could they have been preadjusting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I preadjust?
couldn't you preadjust?
couldn't he preadjust?
couldn't we preadjust?
couldn't you preadjust?
couldn't they preadjust? 	couldn't I be preadjusting?
couldn't you be preadjusting?
couldn't he be preadjusting?
couldn't we be preadjusting?
couldn't you be preadjusting?
couldn't they be preadjusting? 	couldn't I have preadjusted?
couldn't you have preadjusted?
couldn't he have preadjusted?
couldn't we have preadjusted?
couldn't you have preadjusted?
couldn't they have preadjusted? 	couldn't I have been preadjusting?
couldn't you have been preadjusting?
couldn't he have been preadjusting?
couldn't we have been preadjusting?
couldn't you have been preadjusting?
couldn't they have been preadjusting?