can lunch
Regular verb: lunch - lunched- lunched

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can lunch
you can lunch
he can lunch
we can lunch
you can lunch
they can lunch 	I can be lunching
you can be lunching
he can be lunching
we can be lunching
you can be lunching
they can be lunching	I can have lunched
you can have lunched
he can have lunched
we can have lunched
you can have lunched
they can have lunched	I can have been lunching
you can have been lunching
he can have been lunching
we can have been lunching
you can have been lunching
they can have been lunching	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't lunch
you can't lunch
he can't lunch
we can't lunch
you can't lunch
they can't lunch 	I can't be lunching
you can't be lunching
he can't be lunching
we can't be lunching
you can't be lunching
they can't be lunching	I can't have lunched
you can't have lunched
he can't have lunched
we can't have lunched
you can't have lunched
they can't have lunched	I can't have been lunching
you can't have been lunching
he can't have been lunching
we can't have been lunching
you can't have been lunching
they can't have been lunching	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I lunch?
can you lunch?
can he lunch?
can we lunch?
can you lunch?
can they lunch? 	can I be lunching?
can you be lunching?
can he be lunching?
can we be lunching?
can you be lunching?
can they be lunching? 	can I have lunched?
can you have lunched?
can he have lunched?
can we have lunched?
can you have lunched?
can they have lunched? 	can I have been lunching?
can you have been lunching?
can he have been lunching?
can we have been lunching?
can you have been lunching?
can they have been lunching? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I lunch?
can't you lunch?
can't he lunch?
can't we lunch?
can't you lunch?
can't they lunch? 	can't I be lunching?
can't you be lunching?
can't he be lunching?
can't we be lunching?
can't you be lunching?
can't they be lunching? 	can't I have lunched?
can't you have lunched?
can't he have lunched?
can't we have lunched?
can't you have lunched?
can't they have lunched? 	can't I have been lunching?
can't you have been lunching?
can't he have been lunching?
can't we have been lunching?
can't you have been lunching?
can't they have been lunching?