can fulfill
Regular verb: fulfill - fulfilled- fulfilled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can fulfill
you can fulfill
she can fulfill
we can fulfill
you can fulfill
they can fulfill 	I can be fulfilling
you can be fulfilling
she can be fulfilling
we can be fulfilling
you can be fulfilling
they can be fulfilling	I can have fulfilled
you can have fulfilled
she can have fulfilled
we can have fulfilled
you can have fulfilled
they can have fulfilled	I can have been fulfilling
you can have been fulfilling
she can have been fulfilling
we can have been fulfilling
you can have been fulfilling
they can have been fulfilling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't fulfill
you can't fulfill
she can't fulfill
we can't fulfill
you can't fulfill
they can't fulfill 	I can't be fulfilling
you can't be fulfilling
she can't be fulfilling
we can't be fulfilling
you can't be fulfilling
they can't be fulfilling	I can't have fulfilled
you can't have fulfilled
she can't have fulfilled
we can't have fulfilled
you can't have fulfilled
they can't have fulfilled	I can't have been fulfilling
you can't have been fulfilling
she can't have been fulfilling
we can't have been fulfilling
you can't have been fulfilling
they can't have been fulfilling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I fulfill?
can you fulfill?
can she fulfill?
can we fulfill?
can you fulfill?
can they fulfill? 	can I be fulfilling?
can you be fulfilling?
can she be fulfilling?
can we be fulfilling?
can you be fulfilling?
can they be fulfilling? 	can I have fulfilled?
can you have fulfilled?
can she have fulfilled?
can we have fulfilled?
can you have fulfilled?
can they have fulfilled? 	can I have been fulfilling?
can you have been fulfilling?
can she have been fulfilling?
can we have been fulfilling?
can you have been fulfilling?
can they have been fulfilling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I fulfill?
can't you fulfill?
can't she fulfill?
can't we fulfill?
can't you fulfill?
can't they fulfill? 	can't I be fulfilling?
can't you be fulfilling?
can't she be fulfilling?
can't we be fulfilling?
can't you be fulfilling?
can't they be fulfilling? 	can't I have fulfilled?
can't you have fulfilled?
can't she have fulfilled?
can't we have fulfilled?
can't you have fulfilled?
can't they have fulfilled? 	can't I have been fulfilling?
can't you have been fulfilling?
can't she have been fulfilling?
can't we have been fulfilling?
can't you have been fulfilling?
can't they have been fulfilling?