can grouch
Regular verb: grouch - grouched- grouched

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can grouch
you can grouch
he can grouch
we can grouch
you can grouch
they can grouch 	I can be grouching
you can be grouching
he can be grouching
we can be grouching
you can be grouching
they can be grouching	I can have grouched
you can have grouched
he can have grouched
we can have grouched
you can have grouched
they can have grouched	I can have been grouching
you can have been grouching
he can have been grouching
we can have been grouching
you can have been grouching
they can have been grouching	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't grouch
you can't grouch
he can't grouch
we can't grouch
you can't grouch
they can't grouch 	I can't be grouching
you can't be grouching
he can't be grouching
we can't be grouching
you can't be grouching
they can't be grouching	I can't have grouched
you can't have grouched
he can't have grouched
we can't have grouched
you can't have grouched
they can't have grouched	I can't have been grouching
you can't have been grouching
he can't have been grouching
we can't have been grouching
you can't have been grouching
they can't have been grouching	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I grouch?
can you grouch?
can he grouch?
can we grouch?
can you grouch?
can they grouch? 	can I be grouching?
can you be grouching?
can he be grouching?
can we be grouching?
can you be grouching?
can they be grouching? 	can I have grouched?
can you have grouched?
can he have grouched?
can we have grouched?
can you have grouched?
can they have grouched? 	can I have been grouching?
can you have been grouching?
can he have been grouching?
can we have been grouching?
can you have been grouching?
can they have been grouching? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I grouch?
can't you grouch?
can't he grouch?
can't we grouch?
can't you grouch?
can't they grouch? 	can't I be grouching?
can't you be grouching?
can't he be grouching?
can't we be grouching?
can't you be grouching?
can't they be grouching? 	can't I have grouched?
can't you have grouched?
can't he have grouched?
can't we have grouched?
can't you have grouched?
can't they have grouched? 	can't I have been grouching?
can't you have been grouching?
can't he have been grouching?
can't we have been grouching?
can't you have been grouching?
can't they have been grouching?