can crunch
Regular verb: crunch - crunched- crunched

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can crunch
you can crunch
he can crunch
we can crunch
you can crunch
they can crunch 	I can be crunching
you can be crunching
he can be crunching
we can be crunching
you can be crunching
they can be crunching	I can have crunched
you can have crunched
he can have crunched
we can have crunched
you can have crunched
they can have crunched	I can have been crunching
you can have been crunching
he can have been crunching
we can have been crunching
you can have been crunching
they can have been crunching	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot crunch
you cannot crunch
he cannot crunch
we cannot crunch
you cannot crunch
they cannot crunch 	I cannot be crunching
you cannot be crunching
he cannot be crunching
we cannot be crunching
you cannot be crunching
they cannot be crunching	I cannot have crunched
you cannot have crunched
he cannot have crunched
we cannot have crunched
you cannot have crunched
they cannot have crunched	I cannot have been crunching
you cannot have been crunching
he cannot have been crunching
we cannot have been crunching
you cannot have been crunching
they cannot have been crunching	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I crunch?
can you crunch?
can he crunch?
can we crunch?
can you crunch?
can they crunch? 	can I be crunching?
can you be crunching?
can he be crunching?
can we be crunching?
can you be crunching?
can they be crunching? 	can I have crunched?
can you have crunched?
can he have crunched?
can we have crunched?
can you have crunched?
can they have crunched? 	can I have been crunching?
can you have been crunching?
can he have been crunching?
can we have been crunching?
can you have been crunching?
can they have been crunching? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not crunch?
can you not crunch?
can he not crunch?
can we not crunch?
can you not crunch?
can they not crunch? 	can I not be crunching?
can you not be crunching?
can he not be crunching?
can we not be crunching?
can you not be crunching?
can they not be crunching? 	can I not have crunched?
can you not have crunched?
can he not have crunched?
can we not have crunched?
can you not have crunched?
can they not have crunched? 	can I not have been crunching?
can you not have been crunching?
can he not have been crunching?
can we not have been crunching?
can you not have been crunching?
can they not have been crunching?