could delouse
Regular verb: delouse - deloused- deloused

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could delouse
you could delouse
he could delouse
we could delouse
you could delouse
they could delouse 	I could be delousing
you could be delousing
he could be delousing
we could be delousing
you could be delousing
they could be delousing	I could have deloused
you could have deloused
he could have deloused
we could have deloused
you could have deloused
they could have deloused	I could have been delousing
you could have been delousing
he could have been delousing
we could have been delousing
you could have been delousing
they could have been delousing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't delouse
you couldn't delouse
he couldn't delouse
we couldn't delouse
you couldn't delouse
they couldn't delouse 	I couldn't be delousing
you couldn't be delousing
he couldn't be delousing
we couldn't be delousing
you couldn't be delousing
they couldn't be delousing	I couldn't have deloused
you couldn't have deloused
he couldn't have deloused
we couldn't have deloused
you couldn't have deloused
they couldn't have deloused	I couldn't have been delousing
you couldn't have been delousing
he couldn't have been delousing
we couldn't have been delousing
you couldn't have been delousing
they couldn't have been delousing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I delouse?
could you delouse?
could he delouse?
could we delouse?
could you delouse?
could they delouse? 	could I be delousing?
could you be delousing?
could he be delousing?
could we be delousing?
could you be delousing?
could they be delousing? 	could I have deloused?
could you have deloused?
could he have deloused?
could we have deloused?
could you have deloused?
could they have deloused? 	could I have been delousing?
could you have been delousing?
could he have been delousing?
could we have been delousing?
could you have been delousing?
could they have been delousing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I delouse?
couldn't you delouse?
couldn't he delouse?
couldn't we delouse?
couldn't you delouse?
couldn't they delouse? 	couldn't I be delousing?
couldn't you be delousing?
couldn't he be delousing?
couldn't we be delousing?
couldn't you be delousing?
couldn't they be delousing? 	couldn't I have deloused?
couldn't you have deloused?
couldn't he have deloused?
couldn't we have deloused?
couldn't you have deloused?
couldn't they have deloused? 	couldn't I have been delousing?
couldn't you have been delousing?
couldn't he have been delousing?
couldn't we have been delousing?
couldn't you have been delousing?
couldn't they have been delousing?