should impute
Regular verb: impute - imputed- imputed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should impute
you should impute
she should impute
we should impute
you should impute
they should impute 	I should be imputing
you should be imputing
she should be imputing
we should be imputing
you should be imputing
they should be imputing	I should have imputed
you should have imputed
she should have imputed
we should have imputed
you should have imputed
they should have imputed	I should have been imputing
you should have been imputing
she should have been imputing
we should have been imputing
you should have been imputing
they should have been imputing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not impute
you should not impute
she should not impute
we should not impute
you should not impute
they should not impute 	I should not be imputing
you should not be imputing
she should not be imputing
we should not be imputing
you should not be imputing
they should not be imputing	I should not have imputed
you should not have imputed
she should not have imputed
we should not have imputed
you should not have imputed
they should not have imputed	I should not have been imputing
you should not have been imputing
she should not have been imputing
we should not have been imputing
you should not have been imputing
they should not have been imputing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I impute?
should you impute?
should she impute?
should we impute?
should you impute?
should they impute? 	should I be imputing?
should you be imputing?
should she be imputing?
should we be imputing?
should you be imputing?
should they be imputing? 	should I have imputed?
should you have imputed?
should she have imputed?
should we have imputed?
should you have imputed?
should they have imputed? 	should I have been imputing?
should you have been imputing?
should she have been imputing?
should we have been imputing?
should you have been imputing?
should they have been imputing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not impute?
should you not impute?
should she not impute?
should we not impute?
should you not impute?
should they not impute? 	should I not be imputing?
should you not be imputing?
should she not be imputing?
should we not be imputing?
should you not be imputing?
should they not be imputing? 	should I not have imputed?
should you not have imputed?
should she not have imputed?
should we not have imputed?
should you not have imputed?
should they not have imputed? 	should I not have been imputing?
should you not have been imputing?
should she not have been imputing?
should we not have been imputing?
should you not have been imputing?
should they not have been imputing?