could castigate
Regular verb: castigate - castigated- castigated

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could castigate
you could castigate
she could castigate
we could castigate
you could castigate
they could castigate 	I could be castigating
you could be castigating
she could be castigating
we could be castigating
you could be castigating
they could be castigating	I could have castigated
you could have castigated
she could have castigated
we could have castigated
you could have castigated
they could have castigated	I could have been castigating
you could have been castigating
she could have been castigating
we could have been castigating
you could have been castigating
they could have been castigating	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't castigate
you couldn't castigate
she couldn't castigate
we couldn't castigate
you couldn't castigate
they couldn't castigate 	I couldn't be castigating
you couldn't be castigating
she couldn't be castigating
we couldn't be castigating
you couldn't be castigating
they couldn't be castigating	I couldn't have castigated
you couldn't have castigated
she couldn't have castigated
we couldn't have castigated
you couldn't have castigated
they couldn't have castigated	I couldn't have been castigating
you couldn't have been castigating
she couldn't have been castigating
we couldn't have been castigating
you couldn't have been castigating
they couldn't have been castigating	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I castigate?
could you castigate?
could she castigate?
could we castigate?
could you castigate?
could they castigate? 	could I be castigating?
could you be castigating?
could she be castigating?
could we be castigating?
could you be castigating?
could they be castigating? 	could I have castigated?
could you have castigated?
could she have castigated?
could we have castigated?
could you have castigated?
could they have castigated? 	could I have been castigating?
could you have been castigating?
could she have been castigating?
could we have been castigating?
could you have been castigating?
could they have been castigating? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I castigate?
couldn't you castigate?
couldn't she castigate?
couldn't we castigate?
couldn't you castigate?
couldn't they castigate? 	couldn't I be castigating?
couldn't you be castigating?
couldn't she be castigating?
couldn't we be castigating?
couldn't you be castigating?
couldn't they be castigating? 	couldn't I have castigated?
couldn't you have castigated?
couldn't she have castigated?
couldn't we have castigated?
couldn't you have castigated?
couldn't they have castigated? 	couldn't I have been castigating?
couldn't you have been castigating?
couldn't she have been castigating?
couldn't we have been castigating?
couldn't you have been castigating?
couldn't they have been castigating?