English verb conjugation
CAN PERISH

Regular verb: perish - perished - perished

Affirmation

Simple form	V-ing form
I can perish you can perish he can perish we can perish you can perish they can perish	I can be perishing you can be perishing he can be perishing we can be perishing you can be perishing they can be perishing
Perfect	V-ing perfect
I can have perished you can have perished he can have perished we can have perished you can have perished they can have perished	I can have been perishing you can have been perishing he can have been perishing we can have been perishing you can have been perishing they can have been perishing

Negation

Simple form	V-ing form
I cannot perish you cannot perish he cannot perish we cannot perish you cannot perish they cannot perish	I cannot be perishing you cannot be perishing he cannot be perishing we cannot be perishing you cannot be perishing they cannot be perishing
Perfect	V-ing perfect
I cannot have perished you cannot have perished he cannot have perished we cannot have perished you cannot have perished they cannot have perished	I cannot have been perishing you cannot have been perishing he cannot have been perishing we cannot have been perishing you cannot have been perishing they cannot have been perishing

Interrogative form

Simple form	V-ing form
can I perish? can you perish? can he perish? can we perish? can you perish? can they perish?	can I be perishing? can you be perishing? can he be perishing? can we be perishing? can you be perishing? can they be perishing?
Perfect	V-ing perfect
can I have perished? can you have perished? can he have perished? can we have perished? can you have perished? can they have perished?	can I have been perishing? can you have been perishing? can he have been perishing? can we have been perishing? can you have been perishing? can they have been perishing?

Interro-negative form

Simple form	V-ing form
can I not perish? can you not perish? can he not perish? can we not perish? can you not perish? can they not perish?	can I not be perishing? can you not be perishing? can he not be perishing? can we not be perishing? can you not be perishing? can they not be perishing?
Perfect	V-ing perfect
can I not have perished? can you not have perished? can he not have perished? can we not have perished? can you not have perished? can they not have perished?	can I not have been perishing? can you not have been perishing? can he not have been perishing? can we not have been perishing? can you not have been perishing? can they not have been perishing?