could avulse
Regular verb: avulse - avulsed- avulsed

Affirmation 	
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I could avulse
you could avulse
he could avulse
we could avulse
you could avulse
they could avulse 	I could be avulsing
you could be avulsing
he could be avulsing
we could be avulsing
you could be avulsing
they could be avulsing	I could have avulsed
you could have avulsed
he could have avulsed
we could have avulsed
you could have avulsed
they could have avulsed	I could have been avulsing
you could have been avulsing
he could have been avulsing
we could have been avulsing
you could have been avulsing
they could have been avulsing	

Negation 	
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I couldn't avulse
you couldn't avulse
he couldn't avulse
we couldn't avulse
you couldn't avulse
they couldn't avulse 	I couldn't be avulsing
you couldn't be avulsing
he couldn't be avulsing
we couldn't be avulsing
you couldn't be avulsing
they couldn't be avulsing	I couldn't have avulsed
you couldn't have avulsed
he couldn't have avulsed
we couldn't have avulsed
you couldn't have avulsed
they couldn't have avulsed	I couldn't have been avulsing
you couldn't have been avulsing
he couldn't have been avulsing
we couldn't have been avulsing
you couldn't have been avulsing
they couldn't have been avulsing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I avulse?
could you avulse?
could he avulse?
could we avulse?
could you avulse?
could they avulse? 	could I be avulsing?
could you be avulsing?
could he be avulsing?
could we be avulsing?
could you be avulsing?
could they be avulsing? 	could I have avulsed?
could you have avulsed?
could he have avulsed?
could we have avulsed?
could you have avulsed?
could they have avulsed? 	could I have been avulsing?
could you have been avulsing?
could he have been avulsing?
could we have been avulsing?
could you have been avulsing?
could they have been avulsing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I avulse?
couldn't you avulse?
couldn't he avulse?
couldn't we avulse?
couldn't you avulse?
couldn't they avulse? 	couldn't I be avulsing?
couldn't you be avulsing?
couldn't he be avulsing?
couldn't we be avulsing?
couldn't you be avulsing?
couldn't they be avulsing? 	couldn't I have avulsed?
couldn't you have avulsed?
couldn't he have avulsed?
couldn't we have avulsed?
couldn't you have avulsed?
couldn't they have avulsed? 	couldn't I have been avulsing?
couldn't you have been avulsing?
couldn't he have been avulsing?
couldn't we have been avulsing?
couldn't you have been avulsing?
couldn't they have been avulsing?