could anaesthetize
Regular verb: anaesthetize - anaesthetized- anaesthetized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could anaesthetize
you could anaesthetize
he could anaesthetize
we could anaesthetize
you could anaesthetize
they could anaesthetize 	I could be anaesthetizing
you could be anaesthetizing
he could be anaesthetizing
we could be anaesthetizing
you could be anaesthetizing
they could be anaesthetizing	I could have anaesthetized
you could have anaesthetized
he could have anaesthetized
we could have anaesthetized
you could have anaesthetized
they could have anaesthetized	I could have been anaesthetizing
you could have been anaesthetizing
he could have been anaesthetizing
we could have been anaesthetizing
you could have been anaesthetizing
they could have been anaesthetizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't anaesthetize
you couldn't anaesthetize
he couldn't anaesthetize
we couldn't anaesthetize
you couldn't anaesthetize
they couldn't anaesthetize 	I couldn't be anaesthetizing
you couldn't be anaesthetizing
he couldn't be anaesthetizing
we couldn't be anaesthetizing
you couldn't be anaesthetizing
they couldn't be anaesthetizing	I couldn't have anaesthetized
you couldn't have anaesthetized
he couldn't have anaesthetized
we couldn't have anaesthetized
you couldn't have anaesthetized
they couldn't have anaesthetized	I couldn't have been anaesthetizing
you couldn't have been anaesthetizing
he couldn't have been anaesthetizing
we couldn't have been anaesthetizing
you couldn't have been anaesthetizing
they couldn't have been anaesthetizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I anaesthetize?
could you anaesthetize?
could he anaesthetize?
could we anaesthetize?
could you anaesthetize?
could they anaesthetize? 	could I be anaesthetizing?
could you be anaesthetizing?
could he be anaesthetizing?
could we be anaesthetizing?
could you be anaesthetizing?
could they be anaesthetizing? 	could I have anaesthetized?
could you have anaesthetized?
could he have anaesthetized?
could we have anaesthetized?
could you have anaesthetized?
could they have anaesthetized? 	could I have been anaesthetizing?
could you have been anaesthetizing?
could he have been anaesthetizing?
could we have been anaesthetizing?
could you have been anaesthetizing?
could they have been anaesthetizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I anaesthetize?
couldn't you anaesthetize?
couldn't he anaesthetize?
couldn't we anaesthetize?
couldn't you anaesthetize?
couldn't they anaesthetize? 	couldn't I be anaesthetizing?
couldn't you be anaesthetizing?
couldn't he be anaesthetizing?
couldn't we be anaesthetizing?
couldn't you be anaesthetizing?
couldn't they be anaesthetizing? 	couldn't I have anaesthetized?
couldn't you have anaesthetized?
couldn't he have anaesthetized?
couldn't we have anaesthetized?
couldn't you have anaesthetized?
couldn't they have anaesthetized? 	couldn't I have been anaesthetizing?
couldn't you have been anaesthetizing?
couldn't he have been anaesthetizing?
couldn't we have been anaesthetizing?
couldn't you have been anaesthetizing?
couldn't they have been anaesthetizing?