can harrumph
Regular verb: harrumph - harrumphed- harrumphed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can harrumph
you can harrumph
he can harrumph
we can harrumph
you can harrumph
they can harrumph 	I can be harrumphing
you can be harrumphing
he can be harrumphing
we can be harrumphing
you can be harrumphing
they can be harrumphing	I can have harrumphed
you can have harrumphed
he can have harrumphed
we can have harrumphed
you can have harrumphed
they can have harrumphed	I can have been harrumphing
you can have been harrumphing
he can have been harrumphing
we can have been harrumphing
you can have been harrumphing
they can have been harrumphing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't harrumph
you can't harrumph
he can't harrumph
we can't harrumph
you can't harrumph
they can't harrumph 	I can't be harrumphing
you can't be harrumphing
he can't be harrumphing
we can't be harrumphing
you can't be harrumphing
they can't be harrumphing	I can't have harrumphed
you can't have harrumphed
he can't have harrumphed
we can't have harrumphed
you can't have harrumphed
they can't have harrumphed	I can't have been harrumphing
you can't have been harrumphing
he can't have been harrumphing
we can't have been harrumphing
you can't have been harrumphing
they can't have been harrumphing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I harrumph?
can you harrumph?
can he harrumph?
can we harrumph?
can you harrumph?
can they harrumph? 	can I be harrumphing?
can you be harrumphing?
can he be harrumphing?
can we be harrumphing?
can you be harrumphing?
can they be harrumphing? 	can I have harrumphed?
can you have harrumphed?
can he have harrumphed?
can we have harrumphed?
can you have harrumphed?
can they have harrumphed? 	can I have been harrumphing?
can you have been harrumphing?
can he have been harrumphing?
can we have been harrumphing?
can you have been harrumphing?
can they have been harrumphing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I harrumph?
can't you harrumph?
can't he harrumph?
can't we harrumph?
can't you harrumph?
can't they harrumph? 	can't I be harrumphing?
can't you be harrumphing?
can't he be harrumphing?
can't we be harrumphing?
can't you be harrumphing?
can't they be harrumphing? 	can't I have harrumphed?
can't you have harrumphed?
can't he have harrumphed?
can't we have harrumphed?
can't you have harrumphed?
can't they have harrumphed? 	can't I have been harrumphing?
can't you have been harrumphing?
can't he have been harrumphing?
can't we have been harrumphing?
can't you have been harrumphing?
can't they have been harrumphing?