can glower
Regular verb: glower - glowered- glowered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can glower
you can glower
she can glower
we can glower
you can glower
they can glower 	I can be glowering
you can be glowering
she can be glowering
we can be glowering
you can be glowering
they can be glowering	I can have glowered
you can have glowered
she can have glowered
we can have glowered
you can have glowered
they can have glowered	I can have been glowering
you can have been glowering
she can have been glowering
we can have been glowering
you can have been glowering
they can have been glowering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't glower
you can't glower
she can't glower
we can't glower
you can't glower
they can't glower 	I can't be glowering
you can't be glowering
she can't be glowering
we can't be glowering
you can't be glowering
they can't be glowering	I can't have glowered
you can't have glowered
she can't have glowered
we can't have glowered
you can't have glowered
they can't have glowered	I can't have been glowering
you can't have been glowering
she can't have been glowering
we can't have been glowering
you can't have been glowering
they can't have been glowering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I glower?
can you glower?
can she glower?
can we glower?
can you glower?
can they glower? 	can I be glowering?
can you be glowering?
can she be glowering?
can we be glowering?
can you be glowering?
can they be glowering? 	can I have glowered?
can you have glowered?
can she have glowered?
can we have glowered?
can you have glowered?
can they have glowered? 	can I have been glowering?
can you have been glowering?
can she have been glowering?
can we have been glowering?
can you have been glowering?
can they have been glowering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I glower?
can't you glower?
can't she glower?
can't we glower?
can't you glower?
can't they glower? 	can't I be glowering?
can't you be glowering?
can't she be glowering?
can't we be glowering?
can't you be glowering?
can't they be glowering? 	can't I have glowered?
can't you have glowered?
can't she have glowered?
can't we have glowered?
can't you have glowered?
can't they have glowered? 	can't I have been glowering?
can't you have been glowering?
can't she have been glowering?
can't we have been glowering?
can't you have been glowering?
can't they have been glowering?