can preassign
Regular verb: preassign - preassigned- preassigned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can preassign
you can preassign
she can preassign
we can preassign
you can preassign
they can preassign 	I can be preassigning
you can be preassigning
she can be preassigning
we can be preassigning
you can be preassigning
they can be preassigning	I can have preassigned
you can have preassigned
she can have preassigned
we can have preassigned
you can have preassigned
they can have preassigned	I can have been preassigning
you can have been preassigning
she can have been preassigning
we can have been preassigning
you can have been preassigning
they can have been preassigning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot preassign
you cannot preassign
she cannot preassign
we cannot preassign
you cannot preassign
they cannot preassign 	I cannot be preassigning
you cannot be preassigning
she cannot be preassigning
we cannot be preassigning
you cannot be preassigning
they cannot be preassigning	I cannot have preassigned
you cannot have preassigned
she cannot have preassigned
we cannot have preassigned
you cannot have preassigned
they cannot have preassigned	I cannot have been preassigning
you cannot have been preassigning
she cannot have been preassigning
we cannot have been preassigning
you cannot have been preassigning
they cannot have been preassigning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I preassign?
can you preassign?
can she preassign?
can we preassign?
can you preassign?
can they preassign? 	can I be preassigning?
can you be preassigning?
can she be preassigning?
can we be preassigning?
can you be preassigning?
can they be preassigning? 	can I have preassigned?
can you have preassigned?
can she have preassigned?
can we have preassigned?
can you have preassigned?
can they have preassigned? 	can I have been preassigning?
can you have been preassigning?
can she have been preassigning?
can we have been preassigning?
can you have been preassigning?
can they have been preassigning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not preassign?
can you not preassign?
can she not preassign?
can we not preassign?
can you not preassign?
can they not preassign? 	can I not be preassigning?
can you not be preassigning?
can she not be preassigning?
can we not be preassigning?
can you not be preassigning?
can they not be preassigning? 	can I not have preassigned?
can you not have preassigned?
can she not have preassigned?
can we not have preassigned?
can you not have preassigned?
can they not have preassigned? 	can I not have been preassigning?
can you not have been preassigning?
can she not have been preassigning?
can we not have been preassigning?
can you not have been preassigning?
can they not have been preassigning?