ought to sum
Verbo regolare: sum - summed- summed

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I ought to sum
you ought to sum
she ought to sum
we ought to sum
you ought to sum
they ought to sum 	I ought to be summing
you ought to be summing
she ought to be summing
we ought to be summing
you ought to be summing
they ought to be summing	I ought to have summed
you ought to have summed
she ought to have summed
we ought to have summed
you ought to have summed
they ought to have summed	I ought to have been summing
you ought to have been summing
she ought to have been summing
we ought to have been summing
you ought to have been summing
they ought to have been summing	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I ought not to sum
you ought not to sum
she ought not to sum
we ought not to sum
you ought not to sum
they ought not to sum 	I ought not to summing
you ought not to summing
she ought not to summing
we ought not to summing
you ought not to summing
they ought not to summing	I ought not to have summed
you ought not to have summed
she ought not to have summed
we ought not to have summed
you ought not to have summed
they ought not to have summed	I ought not to have been summing
you ought not to have been summing
she ought not to have been summing
we ought not to have been summing
you ought not to have been summing
they ought not to have been summing	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
ought to I sum?
ought to you sum?
ought to she sum?
ought to we sum?
ought to you sum?
ought to they sum? 	ought to I be summing?
ought to you be summing?
ought to she be summing?
ought to we be summing?
ought to you be summing?
ought to they be summing? 	ought to I have summed?
ought to you have summed?
ought to she have summed?
ought to we have summed?
ought to you have summed?
ought to they have summed? 	ought to I have been summing?
ought to you have been summing?
ought to she have been summing?
ought to we have been summing?
ought to you have been summing?
ought to they have been summing? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
ought I not to sum?
ought you not to sum?
ought she not to sum?
ought we not to sum?
ought you not to sum?
ought they not to sum? 	ought I not to be summing?
ought you not to be summing?
ought she not to be summing?
ought we not to be summing?
ought you not to be summing?
ought they not to be summing? 	ought I not to have summed?
ought you not to have summed?
ought she not to have summed?
ought we not to have summed?
ought you not to have summed?
ought they not to have summed? 	ought I not to have been summing?
ought you not to have been summing?
ought she not to have been summing?
ought we not to have been summing?
ought you not to have been summing?
ought they not to have been summing?