should fribble
Regular verb: fribble - fribbled- fribbled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should fribble
you should fribble
she should fribble
we should fribble
you should fribble
they should fribble 	I should be fribbling
you should be fribbling
she should be fribbling
we should be fribbling
you should be fribbling
they should be fribbling	I should have fribbled
you should have fribbled
she should have fribbled
we should have fribbled
you should have fribbled
they should have fribbled	I should have been fribbling
you should have been fribbling
she should have been fribbling
we should have been fribbling
you should have been fribbling
they should have been fribbling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not fribble
you should not fribble
she should not fribble
we should not fribble
you should not fribble
they should not fribble 	I should not be fribbling
you should not be fribbling
she should not be fribbling
we should not be fribbling
you should not be fribbling
they should not be fribbling	I should not have fribbled
you should not have fribbled
she should not have fribbled
we should not have fribbled
you should not have fribbled
they should not have fribbled	I should not have been fribbling
you should not have been fribbling
she should not have been fribbling
we should not have been fribbling
you should not have been fribbling
they should not have been fribbling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I fribble?
should you fribble?
should she fribble?
should we fribble?
should you fribble?
should they fribble? 	should I be fribbling?
should you be fribbling?
should she be fribbling?
should we be fribbling?
should you be fribbling?
should they be fribbling? 	should I have fribbled?
should you have fribbled?
should she have fribbled?
should we have fribbled?
should you have fribbled?
should they have fribbled? 	should I have been fribbling?
should you have been fribbling?
should she have been fribbling?
should we have been fribbling?
should you have been fribbling?
should they have been fribbling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not fribble?
should you not fribble?
should she not fribble?
should we not fribble?
should you not fribble?
should they not fribble? 	should I not be fribbling?
should you not be fribbling?
should she not be fribbling?
should we not be fribbling?
should you not be fribbling?
should they not be fribbling? 	should I not have fribbled?
should you not have fribbled?
should she not have fribbled?
should we not have fribbled?
should you not have fribbled?
should they not have fribbled? 	should I not have been fribbling?
should you not have been fribbling?
should she not have been fribbling?
should we not have been fribbling?
should you not have been fribbling?
should they not have been fribbling?