can preassign
Regular verb: preassign - preassigned- preassigned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can preassign
you can preassign
he can preassign
we can preassign
you can preassign
they can preassign 	I can be preassigning
you can be preassigning
he can be preassigning
we can be preassigning
you can be preassigning
they can be preassigning	I can have preassigned
you can have preassigned
he 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
he 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
he cannot preassign
we cannot preassign
you cannot preassign
they cannot preassign 	I cannot be preassigning
you cannot be preassigning
he cannot be preassigning
we cannot be preassigning
you cannot be preassigning
they cannot be preassigning	I cannot have preassigned
you cannot have preassigned
he 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
he 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 he preassign?
can we preassign?
can you preassign?
can they preassign? 	can I be preassigning?
can you be preassigning?
can he be preassigning?
can we be preassigning?
can you be preassigning?
can they be preassigning? 	can I have preassigned?
can you have preassigned?
can he 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 he 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 he 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 he 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 he 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 he not have been preassigning?
can we not have been preassigning?
can you not have been preassigning?
can they not have been preassigning?