should ponder
Regular verb: ponder - pondered- pondered

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should ponder
you should ponder
he should ponder
we should ponder
you should ponder
they should ponder 	I should be pondering
you should be pondering
he should be pondering
we should be pondering
you should be pondering
they should be pondering	I should have pondered
you should have pondered
he should have pondered
we should have pondered
you should have pondered
they should have pondered	I should have been pondering
you should have been pondering
he should have been pondering
we should have been pondering
you should have been pondering
they should have been pondering	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I should not ponder
you should not ponder
he should not ponder
we should not ponder
you should not ponder
they should not ponder 	I should not be pondering
you should not be pondering
he should not be pondering
we should not be pondering
you should not be pondering
they should not be pondering	I should not have pondered
you should not have pondered
he should not have pondered
we should not have pondered
you should not have pondered
they should not have pondered	I should not have been pondering
you should not have been pondering
he should not have been pondering
we should not have been pondering
you should not have been pondering
they should not have been pondering	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I ponder?
should you ponder?
should he ponder?
should we ponder?
should you ponder?
should they ponder? 	should I be pondering?
should you be pondering?
should he be pondering?
should we be pondering?
should you be pondering?
should they be pondering? 	should I have pondered?
should you have pondered?
should he have pondered?
should we have pondered?
should you have pondered?
should they have pondered? 	should I have been pondering?
should you have been pondering?
should he have been pondering?
should we have been pondering?
should you have been pondering?
should they have been pondering? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I not ponder?
should you not ponder?
should he not ponder?
should we not ponder?
should you not ponder?
should they not ponder? 	should I not be pondering?
should you not be pondering?
should he not be pondering?
should we not be pondering?
should you not be pondering?
should they not be pondering? 	should I not have pondered?
should you not have pondered?
should he not have pondered?
should we not have pondered?
should you not have pondered?
should they not have pondered? 	should I not have been pondering?
should you not have been pondering?
should he not have been pondering?
should we not have been pondering?
should you not have been pondering?
should they not have been pondering?