can leister
Regular verb: leister - leistered- leistered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can leister
you can leister
he can leister
we can leister
you can leister
they can leister 	I can be leistering
you can be leistering
he can be leistering
we can be leistering
you can be leistering
they can be leistering	I can have leistered
you can have leistered
he can have leistered
we can have leistered
you can have leistered
they can have leistered	I can have been leistering
you can have been leistering
he can have been leistering
we can have been leistering
you can have been leistering
they can have been leistering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't leister
you can't leister
he can't leister
we can't leister
you can't leister
they can't leister 	I can't be leistering
you can't be leistering
he can't be leistering
we can't be leistering
you can't be leistering
they can't be leistering	I can't have leistered
you can't have leistered
he can't have leistered
we can't have leistered
you can't have leistered
they can't have leistered	I can't have been leistering
you can't have been leistering
he can't have been leistering
we can't have been leistering
you can't have been leistering
they can't have been leistering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I leister?
can you leister?
can he leister?
can we leister?
can you leister?
can they leister? 	can I be leistering?
can you be leistering?
can he be leistering?
can we be leistering?
can you be leistering?
can they be leistering? 	can I have leistered?
can you have leistered?
can he have leistered?
can we have leistered?
can you have leistered?
can they have leistered? 	can I have been leistering?
can you have been leistering?
can he have been leistering?
can we have been leistering?
can you have been leistering?
can they have been leistering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I leister?
can't you leister?
can't he leister?
can't we leister?
can't you leister?
can't they leister? 	can't I be leistering?
can't you be leistering?
can't he be leistering?
can't we be leistering?
can't you be leistering?
can't they be leistering? 	can't I have leistered?
can't you have leistered?
can't he have leistered?
can't we have leistered?
can't you have leistered?
can't they have leistered? 	can't I have been leistering?
can't you have been leistering?
can't he have been leistering?
can't we have been leistering?
can't you have been leistering?
can't they have been leistering?