English verb conjugation
CAN SUBMARINE

Regular verb: submarine - submarined - submarined

Affirmation

Simple form	V-ing form
I can submarine you can submarine he can submarine we can submarine you can submarine they can submarine	I can be submarining you can be submarining he can be submarining we can be submarining you can be submarining they can be submarining
Perfect	V-ing perfect
I can have submarined you can have submarined he can have submarined we can have submarined you can have submarined they can have submarined	I can have been submarining you can have been submarining he can have been submarining we can have been submarining you can have been submarining they can have been submarining

Negation

Simple form	V-ing form
I can't submarine you can't submarine he can't submarine we can't submarine you can't submarine they can't submarine	I can't be submarining you can't be submarining he can't be submarining we can't be submarining you can't be submarining they can't be submarining
Perfect	V-ing perfect
I can't have submarined you can't have submarined he can't have submarined we can't have submarined you can't have submarined they can't have submarined	I can't have been submarining you can't have been submarining he can't have been submarining we can't have been submarining you can't have been submarining they can't have been submarining

Interrogative form

Simple form	V-ing form
can I submarine? can you submarine? can he submarine? can we submarine? can you submarine? can they submarine?	can I be submarining? can you be submarining? can he be submarining? can we be submarining? can you be submarining? can they be submarining?
Perfect	V-ing perfect
can I have submarined? can you have submarined? can he have submarined? can we have submarined? can you have submarined? can they have submarined?	can I have been submarining? can you have been submarining? can he have been submarining? can we have been submarining? can you have been submarining? can they have been submarining?

Interro-negative form

Simple form	V-ing form
can't I submarine? can't you submarine? can't he submarine? can't we submarine? can't you submarine? can't they submarine?	can't I be submarining? can't you be submarining? can't he be submarining? can't we be submarining? can't you be submarining? can't they be submarining?
Perfect	V-ing perfect
can't I have submarined? can't you have submarined? can't he have submarined? can't we have submarined? can't you have submarined? can't they have submarined?	can't I have been submarining? can't you have been submarining? can't he have been submarining? can't we have been submarining? can't you have been submarining? can't they have been submarining?