I should fluoridate you should fluoridate she should fluoridate we should fluoridate you should fluoridate they should fluoridate
V-ing form
I should be fluoridating you should be fluoridating she should be fluoridating we should be fluoridating you should be fluoridating they should be fluoridating
Perfect
I should have fluoridated you should have fluoridated she should have fluoridated we should have fluoridated you should have fluoridated they should have fluoridated
V-ing perfect
I should have been fluoridating you should have been fluoridating she should have been fluoridating we should have been fluoridating you should have been fluoridating they should have been fluoridating
Negation
Simple form
I should not fluoridate you should not fluoridate she should not fluoridate we should not fluoridate you should not fluoridate they should not fluoridate
V-ing form
I should not be fluoridating you should not be fluoridating she should not be fluoridating we should not be fluoridating you should not be fluoridating they should not be fluoridating
Perfect
I should not have fluoridated you should not have fluoridated she should not have fluoridated we should not have fluoridated you should not have fluoridated they should not have fluoridated
V-ing perfect
I should not have been fluoridating you should not have been fluoridating she should not have been fluoridating we should not have been fluoridating you should not have been fluoridating they should not have been fluoridating
Interrogative form
Simple form
should I fluoridate? should you fluoridate? should she fluoridate? should we fluoridate? should you fluoridate? should they fluoridate?
V-ing form
should I be fluoridating? should you be fluoridating? should she be fluoridating? should we be fluoridating? should you be fluoridating? should they be fluoridating?
Perfect
should I have fluoridated? should you have fluoridated? should she have fluoridated? should we have fluoridated? should you have fluoridated? should they have fluoridated?
V-ing perfect
should I have been fluoridating? should you have been fluoridating? should she have been fluoridating? should we have been fluoridating? should you have been fluoridating? should they have been fluoridating?
Interro-negative form
Simple form
should I not fluoridate? should you not fluoridate? should she not fluoridate? should we not fluoridate? should you not fluoridate? should they not fluoridate?
V-ing form
should I not be fluoridating? should you not be fluoridating? should she not be fluoridating? should we not be fluoridating? should you not be fluoridating? should they not be fluoridating?
Perfect
should I not have fluoridated? should you not have fluoridated? should she not have fluoridated? should we not have fluoridated? should you not have fluoridated? should they not have fluoridated?
V-ing perfect
should I not have been fluoridating? should you not have been fluoridating? should she not have been fluoridating? should we not have been fluoridating? should you not have been fluoridating? should they not have been fluoridating?