English verb conjugation
CAN COFFIN

Regular verb: coffin - coffined - coffined

Affirmation

Simple form	V-ing form
I can coffin you can coffin he can coffin we can coffin you can coffin they can coffin	I can be coffining you can be coffining he can be coffining we can be coffining you can be coffining they can be coffining
Perfect	V-ing perfect
I can have coffined you can have coffined he can have coffined we can have coffined you can have coffined they can have coffined	I can have been coffining you can have been coffining he can have been coffining we can have been coffining you can have been coffining they can have been coffining

Negation

Simple form	V-ing form
I can't coffin you can't coffin he can't coffin we can't coffin you can't coffin they can't coffin	I can't be coffining you can't be coffining he can't be coffining we can't be coffining you can't be coffining they can't be coffining
Perfect	V-ing perfect
I can't have coffined you can't have coffined he can't have coffined we can't have coffined you can't have coffined they can't have coffined	I can't have been coffining you can't have been coffining he can't have been coffining we can't have been coffining you can't have been coffining they can't have been coffining

Interrogative form

Simple form	V-ing form
can I coffin? can you coffin? can he coffin? can we coffin? can you coffin? can they coffin?	can I be coffining? can you be coffining? can he be coffining? can we be coffining? can you be coffining? can they be coffining?
Perfect	V-ing perfect
can I have coffined? can you have coffined? can he have coffined? can we have coffined? can you have coffined? can they have coffined?	can I have been coffining? can you have been coffining? can he have been coffining? can we have been coffining? can you have been coffining? can they have been coffining?

Interro-negative form

Simple form	V-ing form
can't I coffin? can't you coffin? can't he coffin? can't we coffin? can't you coffin? can't they coffin?	can't I be coffining? can't you be coffining? can't he be coffining? can't we be coffining? can't you be coffining? can't they be coffining?
Perfect	V-ing perfect
can't I have coffined? can't you have coffined? can't he have coffined? can't we have coffined? can't you have coffined? can't they have coffined?	can't I have been coffining? can't you have been coffining? can't he have been coffining? can't we have been coffining? can't you have been coffining? can't they have been coffining?