I should zigzag you should zigzag she should zigzag we should zigzag you should zigzag they should zigzag
V-ing form
I should be zigzagging you should be zigzagging she should be zigzagging we should be zigzagging you should be zigzagging they should be zigzagging
Perfect
I should have zigzagged you should have zigzagged she should have zigzagged we should have zigzagged you should have zigzagged they should have zigzagged
V-ing perfect
I should have been zigzagging you should have been zigzagging she should have been zigzagging we should have been zigzagging you should have been zigzagging they should have been zigzagging
Negation
Simple form
I should not zigzag you should not zigzag she should not zigzag we should not zigzag you should not zigzag they should not zigzag
V-ing form
I should not be zigzagging you should not be zigzagging she should not be zigzagging we should not be zigzagging you should not be zigzagging they should not be zigzagging
Perfect
I should not have zigzagged you should not have zigzagged she should not have zigzagged we should not have zigzagged you should not have zigzagged they should not have zigzagged
V-ing perfect
I should not have been zigzagging you should not have been zigzagging she should not have been zigzagging we should not have been zigzagging you should not have been zigzagging they should not have been zigzagging
Interrogative form
Simple form
should I zigzag? should you zigzag? should she zigzag? should we zigzag? should you zigzag? should they zigzag?
V-ing form
should I be zigzagging? should you be zigzagging? should she be zigzagging? should we be zigzagging? should you be zigzagging? should they be zigzagging?
Perfect
should I have zigzagged? should you have zigzagged? should she have zigzagged? should we have zigzagged? should you have zigzagged? should they have zigzagged?
V-ing perfect
should I have been zigzagging? should you have been zigzagging? should she have been zigzagging? should we have been zigzagging? should you have been zigzagging? should they have been zigzagging?
Interro-negative form
Simple form
should I not zigzag? should you not zigzag? should she not zigzag? should we not zigzag? should you not zigzag? should they not zigzag?
V-ing form
should I not be zigzagging? should you not be zigzagging? should she not be zigzagging? should we not be zigzagging? should you not be zigzagging? should they not be zigzagging?
Perfect
should I not have zigzagged? should you not have zigzagged? should she not have zigzagged? should we not have zigzagged? should you not have zigzagged? should they not have zigzagged?
V-ing perfect
should I not have been zigzagging? should you not have been zigzagging? should she not have been zigzagging? should we not have been zigzagging? should you not have been zigzagging? should they not have been zigzagging?