could cleanse
Regular verb: cleanse - cleansed- cleansed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could cleanse
you could cleanse
he could cleanse
we could cleanse
you could cleanse
they could cleanse 	I could be cleansing
you could be cleansing
he could be cleansing
we could be cleansing
you could be cleansing
they could be cleansing	I could have cleansed
you could have cleansed
he could have cleansed
we could have cleansed
you could have cleansed
they could have cleansed	I could have been cleansing
you could have been cleansing
he could have been cleansing
we could have been cleansing
you could have been cleansing
they could have been cleansing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't cleanse
you couldn't cleanse
he couldn't cleanse
we couldn't cleanse
you couldn't cleanse
they couldn't cleanse 	I couldn't be cleansing
you couldn't be cleansing
he couldn't be cleansing
we couldn't be cleansing
you couldn't be cleansing
they couldn't be cleansing	I couldn't have cleansed
you couldn't have cleansed
he couldn't have cleansed
we couldn't have cleansed
you couldn't have cleansed
they couldn't have cleansed	I couldn't have been cleansing
you couldn't have been cleansing
he couldn't have been cleansing
we couldn't have been cleansing
you couldn't have been cleansing
they couldn't have been cleansing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I cleanse?
could you cleanse?
could he cleanse?
could we cleanse?
could you cleanse?
could they cleanse? 	could I be cleansing?
could you be cleansing?
could he be cleansing?
could we be cleansing?
could you be cleansing?
could they be cleansing? 	could I have cleansed?
could you have cleansed?
could he have cleansed?
could we have cleansed?
could you have cleansed?
could they have cleansed? 	could I have been cleansing?
could you have been cleansing?
could he have been cleansing?
could we have been cleansing?
could you have been cleansing?
could they have been cleansing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I cleanse?
couldn't you cleanse?
couldn't he cleanse?
couldn't we cleanse?
couldn't you cleanse?
couldn't they cleanse? 	couldn't I be cleansing?
couldn't you be cleansing?
couldn't he be cleansing?
couldn't we be cleansing?
couldn't you be cleansing?
couldn't they be cleansing? 	couldn't I have cleansed?
couldn't you have cleansed?
couldn't he have cleansed?
couldn't we have cleansed?
couldn't you have cleansed?
couldn't they have cleansed? 	couldn't I have been cleansing?
couldn't you have been cleansing?
couldn't he have been cleansing?
couldn't we have been cleansing?
couldn't you have been cleansing?
couldn't they have been cleansing?