English verb conjugation
CAN GRASP

Regular verb: grasp - grasped - grasped

Affirmation

Simple form	V-ing form
I can grasp you can grasp he can grasp we can grasp you can grasp they can grasp	I can be grasping you can be grasping he can be grasping we can be grasping you can be grasping they can be grasping
Perfect	V-ing perfect
I can have grasped you can have grasped he can have grasped we can have grasped you can have grasped they can have grasped	I can have been grasping you can have been grasping he can have been grasping we can have been grasping you can have been grasping they can have been grasping

Negation

Simple form	V-ing form
I can't grasp you can't grasp he can't grasp we can't grasp you can't grasp they can't grasp	I can't be grasping you can't be grasping he can't be grasping we can't be grasping you can't be grasping they can't be grasping
Perfect	V-ing perfect
I can't have grasped you can't have grasped he can't have grasped we can't have grasped you can't have grasped they can't have grasped	I can't have been grasping you can't have been grasping he can't have been grasping we can't have been grasping you can't have been grasping they can't have been grasping

Interrogative form

Simple form	V-ing form
can I grasp? can you grasp? can he grasp? can we grasp? can you grasp? can they grasp?	can I be grasping? can you be grasping? can he be grasping? can we be grasping? can you be grasping? can they be grasping?
Perfect	V-ing perfect
can I have grasped? can you have grasped? can he have grasped? can we have grasped? can you have grasped? can they have grasped?	can I have been grasping? can you have been grasping? can he have been grasping? can we have been grasping? can you have been grasping? can they have been grasping?

Interro-negative form

Simple form	V-ing form
can't I grasp? can't you grasp? can't he grasp? can't we grasp? can't you grasp? can't they grasp?	can't I be grasping? can't you be grasping? can't he be grasping? can't we be grasping? can't you be grasping? can't they be grasping?
Perfect	V-ing perfect
can't I have grasped? can't you have grasped? can't he have grasped? can't we have grasped? can't you have grasped? can't they have grasped?	can't I have been grasping? can't you have been grasping? can't he have been grasping? can't we have been grasping? can't you have been grasping? can't they have been grasping?