should surf
Regular verb: surf - surfed- surfed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should surf
you should surf
she should surf
we should surf
you should surf
they should surf 	I should be surfing
you should be surfing
she should be surfing
we should be surfing
you should be surfing
they should be surfing	I should have surfed
you should have surfed
she should have surfed
we should have surfed
you should have surfed
they should have surfed	I should have been surfing
you should have been surfing
she should have been surfing
we should have been surfing
you should have been surfing
they should have been surfing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not surf
you should not surf
she should not surf
we should not surf
you should not surf
they should not surf 	I should not be surfing
you should not be surfing
she should not be surfing
we should not be surfing
you should not be surfing
they should not be surfing	I should not have surfed
you should not have surfed
she should not have surfed
we should not have surfed
you should not have surfed
they should not have surfed	I should not have been surfing
you should not have been surfing
she should not have been surfing
we should not have been surfing
you should not have been surfing
they should not have been surfing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I surf?
should you surf?
should she surf?
should we surf?
should you surf?
should they surf? 	should I be surfing?
should you be surfing?
should she be surfing?
should we be surfing?
should you be surfing?
should they be surfing? 	should I have surfed?
should you have surfed?
should she have surfed?
should we have surfed?
should you have surfed?
should they have surfed? 	should I have been surfing?
should you have been surfing?
should she have been surfing?
should we have been surfing?
should you have been surfing?
should they have been surfing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not surf?
should you not surf?
should she not surf?
should we not surf?
should you not surf?
should they not surf? 	should I not be surfing?
should you not be surfing?
should she not be surfing?
should we not be surfing?
should you not be surfing?
should they not be surfing? 	should I not have surfed?
should you not have surfed?
should she not have surfed?
should we not have surfed?
should you not have surfed?
should they not have surfed? 	should I not have been surfing?
should you not have been surfing?
should she not have been surfing?
should we not have been surfing?
should you not have been surfing?
should they not have been surfing?