could perish perish
Regular verb: perish perish - perish perished- perish perished

, this verb may not exist. Conjugation is given as example.

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

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

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

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