could perish
Verbo regular: perish - perished- perished

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could perish
you could perish
she could perish
we could perish
you could perish
they could perish 	I could be perishing
you could be perishing
she could be perishing
we could be perishing
you could be perishing
they could be perishing	I could have perished
you could have perished
she could have perished
we could have perished
you could have perished
they could have perished	I could have been perishing
you could have been perishing
she could have been perishing
we could have been perishing
you could have been perishing
they could have been perishing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't perish
you couldn't perish
she couldn't perish
we couldn't perish
you couldn't perish
they couldn't perish 	I couldn't be perishing
you couldn't be perishing
she couldn't be perishing
we couldn't be perishing
you couldn't be perishing
they couldn't be perishing	I couldn't have perished
you couldn't have perished
she couldn't have perished
we couldn't have perished
you couldn't have perished
they couldn't have perished	I couldn't have been perishing
you couldn't have been perishing
she couldn't have been perishing
we couldn't have been perishing
you couldn't have been perishing
they couldn't have been perishing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I perish?
could you perish?
could she perish?
could we perish?
could you perish?
could they perish? 	could I be perishing?
could you be perishing?
could she be perishing?
could we be perishing?
could you be perishing?
could they be perishing? 	could I have perished?
could you have perished?
could she have perished?
could we have perished?
could you have perished?
could they have perished? 	could I have been perishing?
could you have been perishing?
could she have been perishing?
could we have been perishing?
could you have been perishing?
could they have been perishing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I perish?
couldn't you perish?
couldn't she perish?
couldn't we perish?
couldn't you perish?
couldn't they perish? 	couldn't I be perishing?
couldn't you be perishing?
couldn't she be perishing?
couldn't we be perishing?
couldn't you be perishing?
couldn't they be perishing? 	couldn't I have perished?
couldn't you have perished?
couldn't she have perished?
couldn't we have perished?
couldn't you have perished?
couldn't they have perished? 	couldn't I have been perishing?
couldn't you have been perishing?
couldn't she have been perishing?
couldn't we have been perishing?
couldn't you have been perishing?
couldn't they have been perishing?