can countermarch
Regular verb: countermarch - countermarched- countermarched

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can countermarch
you can countermarch
he can countermarch
we can countermarch
you can countermarch
they can countermarch 	I can be countermarching
you can be countermarching
he can be countermarching
we can be countermarching
you can be countermarching
they can be countermarching	I can have countermarched
you can have countermarched
he can have countermarched
we can have countermarched
you can have countermarched
they can have countermarched	I can have been countermarching
you can have been countermarching
he can have been countermarching
we can have been countermarching
you can have been countermarching
they can have been countermarching	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't countermarch
you can't countermarch
he can't countermarch
we can't countermarch
you can't countermarch
they can't countermarch 	I can't be countermarching
you can't be countermarching
he can't be countermarching
we can't be countermarching
you can't be countermarching
they can't be countermarching	I can't have countermarched
you can't have countermarched
he can't have countermarched
we can't have countermarched
you can't have countermarched
they can't have countermarched	I can't have been countermarching
you can't have been countermarching
he can't have been countermarching
we can't have been countermarching
you can't have been countermarching
they can't have been countermarching	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I countermarch?
can you countermarch?
can he countermarch?
can we countermarch?
can you countermarch?
can they countermarch? 	can I be countermarching?
can you be countermarching?
can he be countermarching?
can we be countermarching?
can you be countermarching?
can they be countermarching? 	can I have countermarched?
can you have countermarched?
can he have countermarched?
can we have countermarched?
can you have countermarched?
can they have countermarched? 	can I have been countermarching?
can you have been countermarching?
can he have been countermarching?
can we have been countermarching?
can you have been countermarching?
can they have been countermarching? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I countermarch?
can't you countermarch?
can't he countermarch?
can't we countermarch?
can't you countermarch?
can't they countermarch? 	can't I be countermarching?
can't you be countermarching?
can't he be countermarching?
can't we be countermarching?
can't you be countermarching?
can't they be countermarching? 	can't I have countermarched?
can't you have countermarched?
can't he have countermarched?
can't we have countermarched?
can't you have countermarched?
can't they have countermarched? 	can't I have been countermarching?
can't you have been countermarching?
can't he have been countermarching?
can't we have been countermarching?
can't you have been countermarching?
can't they have been countermarching?