could astonish
Regular verb: astonish - astonished- astonished

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could astonish
you could astonish
she could astonish
we could astonish
you could astonish
they could astonish 	I could be astonishing
you could be astonishing
she could be astonishing
we could be astonishing
you could be astonishing
they could be astonishing	I could have astonished
you could have astonished
she could have astonished
we could have astonished
you could have astonished
they could have astonished	I could have been astonishing
you could have been astonishing
she could have been astonishing
we could have been astonishing
you could have been astonishing
they could have been astonishing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't astonish
you couldn't astonish
she couldn't astonish
we couldn't astonish
you couldn't astonish
they couldn't astonish 	I couldn't be astonishing
you couldn't be astonishing
she couldn't be astonishing
we couldn't be astonishing
you couldn't be astonishing
they couldn't be astonishing	I couldn't have astonished
you couldn't have astonished
she couldn't have astonished
we couldn't have astonished
you couldn't have astonished
they couldn't have astonished	I couldn't have been astonishing
you couldn't have been astonishing
she couldn't have been astonishing
we couldn't have been astonishing
you couldn't have been astonishing
they couldn't have been astonishing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I astonish?
could you astonish?
could she astonish?
could we astonish?
could you astonish?
could they astonish? 	could I be astonishing?
could you be astonishing?
could she be astonishing?
could we be astonishing?
could you be astonishing?
could they be astonishing? 	could I have astonished?
could you have astonished?
could she have astonished?
could we have astonished?
could you have astonished?
could they have astonished? 	could I have been astonishing?
could you have been astonishing?
could she have been astonishing?
could we have been astonishing?
could you have been astonishing?
could they have been astonishing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I astonish?
couldn't you astonish?
couldn't she astonish?
couldn't we astonish?
couldn't you astonish?
couldn't they astonish? 	couldn't I be astonishing?
couldn't you be astonishing?
couldn't she be astonishing?
couldn't we be astonishing?
couldn't you be astonishing?
couldn't they be astonishing? 	couldn't I have astonished?
couldn't you have astonished?
couldn't she have astonished?
couldn't we have astonished?
couldn't you have astonished?
couldn't they have astonished? 	couldn't I have been astonishing?
couldn't you have been astonishing?
couldn't she have been astonishing?
couldn't we have been astonishing?
couldn't you have been astonishing?
couldn't they have been astonishing?