can heckle
Regular verb: heckle - heckled- heckled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can heckle
you can heckle
she can heckle
we can heckle
you can heckle
they can heckle 	I can be heckling
you can be heckling
she can be heckling
we can be heckling
you can be heckling
they can be heckling	I can have heckled
you can have heckled
she can have heckled
we can have heckled
you can have heckled
they can have heckled	I can have been heckling
you can have been heckling
she can have been heckling
we can have been heckling
you can have been heckling
they can have been heckling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't heckle
you can't heckle
she can't heckle
we can't heckle
you can't heckle
they can't heckle 	I can't be heckling
you can't be heckling
she can't be heckling
we can't be heckling
you can't be heckling
they can't be heckling	I can't have heckled
you can't have heckled
she can't have heckled
we can't have heckled
you can't have heckled
they can't have heckled	I can't have been heckling
you can't have been heckling
she can't have been heckling
we can't have been heckling
you can't have been heckling
they can't have been heckling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I heckle?
can you heckle?
can she heckle?
can we heckle?
can you heckle?
can they heckle? 	can I be heckling?
can you be heckling?
can she be heckling?
can we be heckling?
can you be heckling?
can they be heckling? 	can I have heckled?
can you have heckled?
can she have heckled?
can we have heckled?
can you have heckled?
can they have heckled? 	can I have been heckling?
can you have been heckling?
can she have been heckling?
can we have been heckling?
can you have been heckling?
can they have been heckling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I heckle?
can't you heckle?
can't she heckle?
can't we heckle?
can't you heckle?
can't they heckle? 	can't I be heckling?
can't you be heckling?
can't she be heckling?
can't we be heckling?
can't you be heckling?
can't they be heckling? 	can't I have heckled?
can't you have heckled?
can't she have heckled?
can't we have heckled?
can't you have heckled?
can't they have heckled? 	can't I have been heckling?
can't you have been heckling?
can't she have been heckling?
can't we have been heckling?
can't you have been heckling?
can't they have been heckling?