English verb conjugation
CAN JUMP

Regular verb: jump - jumped - jumped

Affirmation

Simple form	V-ing form
I can jump you can jump he can jump we can jump you can jump they can jump	I can be jumping you can be jumping he can be jumping we can be jumping you can be jumping they can be jumping
Perfect	V-ing perfect
I can have jumped you can have jumped he can have jumped we can have jumped you can have jumped they can have jumped	I can have been jumping you can have been jumping he can have been jumping we can have been jumping you can have been jumping they can have been jumping

Negation

Simple form	V-ing form
I can't jump you can't jump he can't jump we can't jump you can't jump they can't jump	I can't be jumping you can't be jumping he can't be jumping we can't be jumping you can't be jumping they can't be jumping
Perfect	V-ing perfect
I can't have jumped you can't have jumped he can't have jumped we can't have jumped you can't have jumped they can't have jumped	I can't have been jumping you can't have been jumping he can't have been jumping we can't have been jumping you can't have been jumping they can't have been jumping

Interrogative form

Simple form	V-ing form
can I jump? can you jump? can he jump? can we jump? can you jump? can they jump?	can I be jumping? can you be jumping? can he be jumping? can we be jumping? can you be jumping? can they be jumping?
Perfect	V-ing perfect
can I have jumped? can you have jumped? can he have jumped? can we have jumped? can you have jumped? can they have jumped?	can I have been jumping? can you have been jumping? can he have been jumping? can we have been jumping? can you have been jumping? can they have been jumping?

Interro-negative form

Simple form	V-ing form
can't I jump? can't you jump? can't he jump? can't we jump? can't you jump? can't they jump?	can't I be jumping? can't you be jumping? can't he be jumping? can't we be jumping? can't you be jumping? can't they be jumping?
Perfect	V-ing perfect
can't I have jumped? can't you have jumped? can't he have jumped? can't we have jumped? can't you have jumped? can't they have jumped?	can't I have been jumping? can't you have been jumping? can't he have been jumping? can't we have been jumping? can't you have been jumping? can't they have been jumping?