should water-ski
Regular verb: water-ski - water-skied- water-skied

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should water-ski
you should water-ski
she should water-ski
we should water-ski
you should water-ski
they should water-ski 	I should be water-skiing
you should be water-skiing
she should be water-skiing
we should be water-skiing
you should be water-skiing
they should be water-skiing	I should have water-skied
you should have water-skied
she should have water-skied
we should have water-skied
you should have water-skied
they should have water-skied	I should have been water-skiing
you should have been water-skiing
she should have been water-skiing
we should have been water-skiing
you should have been water-skiing
they should have been water-skiing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not water-ski
you should not water-ski
she should not water-ski
we should not water-ski
you should not water-ski
they should not water-ski 	I should not be water-skiing
you should not be water-skiing
she should not be water-skiing
we should not be water-skiing
you should not be water-skiing
they should not be water-skiing	I should not have water-skied
you should not have water-skied
she should not have water-skied
we should not have water-skied
you should not have water-skied
they should not have water-skied	I should not have been water-skiing
you should not have been water-skiing
she should not have been water-skiing
we should not have been water-skiing
you should not have been water-skiing
they should not have been water-skiing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I water-ski?
should you water-ski?
should she water-ski?
should we water-ski?
should you water-ski?
should they water-ski? 	should I be water-skiing?
should you be water-skiing?
should she be water-skiing?
should we be water-skiing?
should you be water-skiing?
should they be water-skiing? 	should I have water-skied?
should you have water-skied?
should she have water-skied?
should we have water-skied?
should you have water-skied?
should they have water-skied? 	should I have been water-skiing?
should you have been water-skiing?
should she have been water-skiing?
should we have been water-skiing?
should you have been water-skiing?
should they have been water-skiing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not water-ski?
should you not water-ski?
should she not water-ski?
should we not water-ski?
should you not water-ski?
should they not water-ski? 	should I not be water-skiing?
should you not be water-skiing?
should she not be water-skiing?
should we not be water-skiing?
should you not be water-skiing?
should they not be water-skiing? 	should I not have water-skied?
should you not have water-skied?
should she not have water-skied?
should we not have water-skied?
should you not have water-skied?
should they not have water-skied? 	should I not have been water-skiing?
should you not have been water-skiing?
should she not have been water-skiing?
should we not have been water-skiing?
should you not have been water-skiing?
should they not have been water-skiing?