can preestablish
Regular verb: preestablish - preestablished- preestablished

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can preestablish
you can preestablish
she can preestablish
we can preestablish
you can preestablish
they can preestablish 	I can be preestablishing
you can be preestablishing
she can be preestablishing
we can be preestablishing
you can be preestablishing
they can be preestablishing	I can have preestablished
you can have preestablished
she can have preestablished
we can have preestablished
you can have preestablished
they can have preestablished	I can have been preestablishing
you can have been preestablishing
she can have been preestablishing
we can have been preestablishing
you can have been preestablishing
they can have been preestablishing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't preestablish
you can't preestablish
she can't preestablish
we can't preestablish
you can't preestablish
they can't preestablish 	I can't be preestablishing
you can't be preestablishing
she can't be preestablishing
we can't be preestablishing
you can't be preestablishing
they can't be preestablishing	I can't have preestablished
you can't have preestablished
she can't have preestablished
we can't have preestablished
you can't have preestablished
they can't have preestablished	I can't have been preestablishing
you can't have been preestablishing
she can't have been preestablishing
we can't have been preestablishing
you can't have been preestablishing
they can't have been preestablishing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I preestablish?
can you preestablish?
can she preestablish?
can we preestablish?
can you preestablish?
can they preestablish? 	can I be preestablishing?
can you be preestablishing?
can she be preestablishing?
can we be preestablishing?
can you be preestablishing?
can they be preestablishing? 	can I have preestablished?
can you have preestablished?
can she have preestablished?
can we have preestablished?
can you have preestablished?
can they have preestablished? 	can I have been preestablishing?
can you have been preestablishing?
can she have been preestablishing?
can we have been preestablishing?
can you have been preestablishing?
can they have been preestablishing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I preestablish?
can't you preestablish?
can't she preestablish?
can't we preestablish?
can't you preestablish?
can't they preestablish? 	can't I be preestablishing?
can't you be preestablishing?
can't she be preestablishing?
can't we be preestablishing?
can't you be preestablishing?
can't they be preestablishing? 	can't I have preestablished?
can't you have preestablished?
can't she have preestablished?
can't we have preestablished?
can't you have preestablished?
can't they have preestablished? 	can't I have been preestablishing?
can't you have been preestablishing?
can't she have been preestablishing?
can't we have been preestablishing?
can't you have been preestablishing?
can't they have been preestablishing?