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 cannot coffin you cannot coffin he cannot coffin we cannot coffin you cannot coffin they cannot coffin	I cannot be coffining you cannot be coffining he cannot be coffining we cannot be coffining you cannot be coffining they cannot be coffining
Perfect	V-ing perfect
I cannot have coffined you cannot have coffined he cannot have coffined we cannot have coffined you cannot have coffined they cannot have coffined	I cannot have been coffining you cannot have been coffining he cannot have been coffining we cannot have been coffining you cannot have been coffining they cannot 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 I not coffin? can you not coffin? can he not coffin? can we not coffin? can you not coffin? can they not coffin?	can I not be coffining? can you not be coffining? can he not be coffining? can we not be coffining? can you not be coffining? can they not be coffining?
Perfect	V-ing perfect
can I not have coffined? can you not have coffined? can he not have coffined? can we not have coffined? can you not have coffined? can they not have coffined?	can I not have been coffining? can you not have been coffining? can he not have been coffining? can we not have been coffining? can you not have been coffining? can they not have been coffining?