English verb conjugation
CAN CAT

Regular verb: cat - cated - cated

Affirmation

Simple form	V-ing form
I can cat you can cat he can cat we can cat you can cat they can cat	I can be cating you can be cating he can be cating we can be cating you can be cating they can be cating
Perfect	V-ing perfect
I can have cated you can have cated he can have cated we can have cated you can have cated they can have cated	I can have been cating you can have been cating he can have been cating we can have been cating you can have been cating they can have been cating

Negation

Simple form	V-ing form
I can't cat you can't cat he can't cat we can't cat you can't cat they can't cat	I can't be cating you can't be cating he can't be cating we can't be cating you can't be cating they can't be cating
Perfect	V-ing perfect
I can't have cated you can't have cated he can't have cated we can't have cated you can't have cated they can't have cated	I can't have been cating you can't have been cating he can't have been cating we can't have been cating you can't have been cating they can't have been cating

Interrogative form

Simple form	V-ing form
can I cat? can you cat? can he cat? can we cat? can you cat? can they cat?	can I be cating? can you be cating? can he be cating? can we be cating? can you be cating? can they be cating?
Perfect	V-ing perfect
can I have cated? can you have cated? can he have cated? can we have cated? can you have cated? can they have cated?	can I have been cating? can you have been cating? can he have been cating? can we have been cating? can you have been cating? can they have been cating?

Interro-negative form

Simple form	V-ing form
can't I cat? can't you cat? can't he cat? can't we cat? can't you cat? can't they cat?	can't I be cating? can't you be cating? can't he be cating? can't we be cating? can't you be cating? can't they be cating?
Perfect	V-ing perfect
can't I have cated? can't you have cated? can't he have cated? can't we have cated? can't you have cated? can't they have cated?	can't I have been cating? can't you have been cating? can't he have been cating? can't we have been cating? can't you have been cating? can't they have been cating?