could squeal
Regular verb: squeal - squealed- squealed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could squeal
you could squeal
he could squeal
we could squeal
you could squeal
they could squeal 	I could be squealing
you could be squealing
he could be squealing
we could be squealing
you could be squealing
they could be squealing	I could have squealed
you could have squealed
he could have squealed
we could have squealed
you could have squealed
they could have squealed	I could have been squealing
you could have been squealing
he could have been squealing
we could have been squealing
you could have been squealing
they could have been squealing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not squeal
you could not squeal
he could not squeal
we could not squeal
you could not squeal
they could not squeal 	I could not be squealing
you could not be squealing
he could not be squealing
we could not be squealing
you could not be squealing
they could not be squealing	I could not have squealed
you could not have squealed
he could not have squealed
we could not have squealed
you could not have squealed
they could not have squealed	I could not have been squealing
you could not have been squealing
he could not have been squealing
we could not have been squealing
you could not have been squealing
they could not have been squealing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I squeal?
could you squeal?
could he squeal?
could we squeal?
could you squeal?
could they squeal? 	could I be squealing?
could you be squealing?
could he be squealing?
could we be squealing?
could you be squealing?
could they be squealing? 	could I have squealed?
could you have squealed?
could he have squealed?
could we have squealed?
could you have squealed?
could they have squealed? 	could I have been squealing?
could you have been squealing?
could he have been squealing?
could we have been squealing?
could you have been squealing?
could they have been squealing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not squeal?
could you not squeal?
could he not squeal?
could we not squeal?
could you not squeal?
could they not squeal? 	could I not be squealing?
could you not be squealing?
could he not be squealing?
could we not be squealing?
could you not be squealing?
could they not be squealing? 	could I not have squealed?
could you not have squealed?
could he not have squealed?
could we not have squealed?
could you not have squealed?
could they not have squealed? 	could I not have been squealing?
could you not have been squealing?
could he not have been squealing?
could we not have been squealing?
could you not have been squealing?
could they not have been squealing?