could tailgate
Regular verb: tailgate - tailgated- tailgated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could tailgate
you could tailgate
he could tailgate
we could tailgate
you could tailgate
they could tailgate 	I could be tailgating
you could be tailgating
he could be tailgating
we could be tailgating
you could be tailgating
they could be tailgating	I could have tailgated
you could have tailgated
he could have tailgated
we could have tailgated
you could have tailgated
they could have tailgated	I could have been tailgating
you could have been tailgating
he could have been tailgating
we could have been tailgating
you could have been tailgating
they could have been tailgating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not tailgate
you could not tailgate
he could not tailgate
we could not tailgate
you could not tailgate
they could not tailgate 	I could not be tailgating
you could not be tailgating
he could not be tailgating
we could not be tailgating
you could not be tailgating
they could not be tailgating	I could not have tailgated
you could not have tailgated
he could not have tailgated
we could not have tailgated
you could not have tailgated
they could not have tailgated	I could not have been tailgating
you could not have been tailgating
he could not have been tailgating
we could not have been tailgating
you could not have been tailgating
they could not have been tailgating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I tailgate?
could you tailgate?
could he tailgate?
could we tailgate?
could you tailgate?
could they tailgate? 	could I be tailgating?
could you be tailgating?
could he be tailgating?
could we be tailgating?
could you be tailgating?
could they be tailgating? 	could I have tailgated?
could you have tailgated?
could he have tailgated?
could we have tailgated?
could you have tailgated?
could they have tailgated? 	could I have been tailgating?
could you have been tailgating?
could he have been tailgating?
could we have been tailgating?
could you have been tailgating?
could they have been tailgating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not tailgate?
could you not tailgate?
could he not tailgate?
could we not tailgate?
could you not tailgate?
could they not tailgate? 	could I not be tailgating?
could you not be tailgating?
could he not be tailgating?
could we not be tailgating?
could you not be tailgating?
could they not be tailgating? 	could I not have tailgated?
could you not have tailgated?
could he not have tailgated?
could we not have tailgated?
could you not have tailgated?
could they not have tailgated? 	could I not have been tailgating?
could you not have been tailgating?
could he not have been tailgating?
could we not have been tailgating?
could you not have been tailgating?
could they not have been tailgating?