English verb conjugation
CAN TOMB

Regular verb: tomb - tombed - tombed

Affirmation

Simple form	V-ing form
I can tomb you can tomb he can tomb we can tomb you can tomb they can tomb	I can be tombing you can be tombing he can be tombing we can be tombing you can be tombing they can be tombing
Perfect	V-ing perfect
I can have tombed you can have tombed he can have tombed we can have tombed you can have tombed they can have tombed	I can have been tombing you can have been tombing he can have been tombing we can have been tombing you can have been tombing they can have been tombing

Negation

Simple form	V-ing form
I can't tomb you can't tomb he can't tomb we can't tomb you can't tomb they can't tomb	I can't be tombing you can't be tombing he can't be tombing we can't be tombing you can't be tombing they can't be tombing
Perfect	V-ing perfect
I can't have tombed you can't have tombed he can't have tombed we can't have tombed you can't have tombed they can't have tombed	I can't have been tombing you can't have been tombing he can't have been tombing we can't have been tombing you can't have been tombing they can't have been tombing

Interrogative form

Simple form	V-ing form
can I tomb? can you tomb? can he tomb? can we tomb? can you tomb? can they tomb?	can I be tombing? can you be tombing? can he be tombing? can we be tombing? can you be tombing? can they be tombing?
Perfect	V-ing perfect
can I have tombed? can you have tombed? can he have tombed? can we have tombed? can you have tombed? can they have tombed?	can I have been tombing? can you have been tombing? can he have been tombing? can we have been tombing? can you have been tombing? can they have been tombing?

Interro-negative form

Simple form	V-ing form
can't I tomb? can't you tomb? can't he tomb? can't we tomb? can't you tomb? can't they tomb?	can't I be tombing? can't you be tombing? can't he be tombing? can't we be tombing? can't you be tombing? can't they be tombing?
Perfect	V-ing perfect
can't I have tombed? can't you have tombed? can't he have tombed? can't we have tombed? can't you have tombed? can't they have tombed?	can't I have been tombing? can't you have been tombing? can't he have been tombing? can't we have been tombing? can't you have been tombing? can't they have been tombing?