could chastise
Regular verb: chastise - chastised- chastised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could chastise
you could chastise
she could chastise
we could chastise
you could chastise
they could chastise 	I could be chastising
you could be chastising
she could be chastising
we could be chastising
you could be chastising
they could be chastising	I could have chastised
you could have chastised
she could have chastised
we could have chastised
you could have chastised
they could have chastised	I could have been chastising
you could have been chastising
she could have been chastising
we could have been chastising
you could have been chastising
they could have been chastising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't chastise
you couldn't chastise
she couldn't chastise
we couldn't chastise
you couldn't chastise
they couldn't chastise 	I couldn't be chastising
you couldn't be chastising
she couldn't be chastising
we couldn't be chastising
you couldn't be chastising
they couldn't be chastising	I couldn't have chastised
you couldn't have chastised
she couldn't have chastised
we couldn't have chastised
you couldn't have chastised
they couldn't have chastised	I couldn't have been chastising
you couldn't have been chastising
she couldn't have been chastising
we couldn't have been chastising
you couldn't have been chastising
they couldn't have been chastising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I chastise?
could you chastise?
could she chastise?
could we chastise?
could you chastise?
could they chastise? 	could I be chastising?
could you be chastising?
could she be chastising?
could we be chastising?
could you be chastising?
could they be chastising? 	could I have chastised?
could you have chastised?
could she have chastised?
could we have chastised?
could you have chastised?
could they have chastised? 	could I have been chastising?
could you have been chastising?
could she have been chastising?
could we have been chastising?
could you have been chastising?
could they have been chastising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I chastise?
couldn't you chastise?
couldn't she chastise?
couldn't we chastise?
couldn't you chastise?
couldn't they chastise? 	couldn't I be chastising?
couldn't you be chastising?
couldn't she be chastising?
couldn't we be chastising?
couldn't you be chastising?
couldn't they be chastising? 	couldn't I have chastised?
couldn't you have chastised?
couldn't she have chastised?
couldn't we have chastised?
couldn't you have chastised?
couldn't they have chastised? 	couldn't I have been chastising?
couldn't you have been chastising?
couldn't she have been chastising?
couldn't we have been chastising?
couldn't you have been chastising?
couldn't they have been chastising?