can prepare
Regular verb: prepare - prepared- prepared

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can prepare
you can prepare
she can prepare
we can prepare
you can prepare
they can prepare 	I can be preparing
you can be preparing
she can be preparing
we can be preparing
you can be preparing
they can be preparing	I can have prepared
you can have prepared
she can have prepared
we can have prepared
you can have prepared
they can have prepared	I can have been preparing
you can have been preparing
she can have been preparing
we can have been preparing
you can have been preparing
they can have been preparing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't prepare
you can't prepare
she can't prepare
we can't prepare
you can't prepare
they can't prepare 	I can't be preparing
you can't be preparing
she can't be preparing
we can't be preparing
you can't be preparing
they can't be preparing	I can't have prepared
you can't have prepared
she can't have prepared
we can't have prepared
you can't have prepared
they can't have prepared	I can't have been preparing
you can't have been preparing
she can't have been preparing
we can't have been preparing
you can't have been preparing
they can't have been preparing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I prepare?
can you prepare?
can she prepare?
can we prepare?
can you prepare?
can they prepare? 	can I be preparing?
can you be preparing?
can she be preparing?
can we be preparing?
can you be preparing?
can they be preparing? 	can I have prepared?
can you have prepared?
can she have prepared?
can we have prepared?
can you have prepared?
can they have prepared? 	can I have been preparing?
can you have been preparing?
can she have been preparing?
can we have been preparing?
can you have been preparing?
can they have been preparing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I prepare?
can't you prepare?
can't she prepare?
can't we prepare?
can't you prepare?
can't they prepare? 	can't I be preparing?
can't you be preparing?
can't she be preparing?
can't we be preparing?
can't you be preparing?
can't they be preparing? 	can't I have prepared?
can't you have prepared?
can't she have prepared?
can't we have prepared?
can't you have prepared?
can't they have prepared? 	can't I have been preparing?
can't you have been preparing?
can't she have been preparing?
can't we have been preparing?
can't you have been preparing?
can't they have been preparing?