I should collar you should collar she should collar we should collar you should collar they should collar
V-ing form
I should be collaring you should be collaring she should be collaring we should be collaring you should be collaring they should be collaring
Perfect
I should have collared you should have collared she should have collared we should have collared you should have collared they should have collared
V-ing perfect
I should have been collaring you should have been collaring she should have been collaring we should have been collaring you should have been collaring they should have been collaring
Negation
Simple form
I should not collar you should not collar she should not collar we should not collar you should not collar they should not collar
V-ing form
I should not be collaring you should not be collaring she should not be collaring we should not be collaring you should not be collaring they should not be collaring
Perfect
I should not have collared you should not have collared she should not have collared we should not have collared you should not have collared they should not have collared
V-ing perfect
I should not have been collaring you should not have been collaring she should not have been collaring we should not have been collaring you should not have been collaring they should not have been collaring
Interrogative form
Simple form
should I collar? should you collar? should she collar? should we collar? should you collar? should they collar?
V-ing form
should I be collaring? should you be collaring? should she be collaring? should we be collaring? should you be collaring? should they be collaring?
Perfect
should I have collared? should you have collared? should she have collared? should we have collared? should you have collared? should they have collared?
V-ing perfect
should I have been collaring? should you have been collaring? should she have been collaring? should we have been collaring? should you have been collaring? should they have been collaring?
Interro-negative form
Simple form
should I not collar? should you not collar? should she not collar? should we not collar? should you not collar? should they not collar?
V-ing form
should I not be collaring? should you not be collaring? should she not be collaring? should we not be collaring? should you not be collaring? should they not be collaring?
Perfect
should I not have collared? should you not have collared? should she not have collared? should we not have collared? should you not have collared? should they not have collared?
V-ing perfect
should I not have been collaring? should you not have been collaring? should she not have been collaring? should we not have been collaring? should you not have been collaring? should they not have been collaring?