English verb conjugation
CAN SHOW

Irregular verb: show - showed - shown

Affirmation

Simple form	V-ing form
I can show you can show he can show we can show you can show they can show	I can be showing you can be showing he can be showing we can be showing you can be showing they can be showing
Perfect	V-ing perfect
I can have shown you can have shown he can have shown we can have shown you can have shown they can have shown	I can have been showing you can have been showing he can have been showing we can have been showing you can have been showing they can have been showing

Negation

Simple form	V-ing form
I can't show you can't show he can't show we can't show you can't show they can't show	I can't be showing you can't be showing he can't be showing we can't be showing you can't be showing they can't be showing
Perfect	V-ing perfect
I can't have shown you can't have shown he can't have shown we can't have shown you can't have shown they can't have shown	I can't have been showing you can't have been showing he can't have been showing we can't have been showing you can't have been showing they can't have been showing

Interrogative form

Simple form	V-ing form
can I show? can you show? can he show? can we show? can you show? can they show?	can I be showing? can you be showing? can he be showing? can we be showing? can you be showing? can they be showing?
Perfect	V-ing perfect
can I have shown? can you have shown? can he have shown? can we have shown? can you have shown? can they have shown?	can I have been showing? can you have been showing? can he have been showing? can we have been showing? can you have been showing? can they have been showing?

Interro-negative form

Simple form	V-ing form
can't I show? can't you show? can't he show? can't we show? can't you show? can't they show?	can't I be showing? can't you be showing? can't he be showing? can't we be showing? can't you be showing? can't they be showing?
Perfect	V-ing perfect
can't I have shown? can't you have shown? can't he have shown? can't we have shown? can't you have shown? can't they have shown?	can't I have been showing? can't you have been showing? can't he have been showing? can't we have been showing? can't you have been showing? can't they have been showing?