ought to sieve
Verbo regolare: sieve - sieved- sieved

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I ought to sieve
you ought to sieve
he ought to sieve
we ought to sieve
you ought to sieve
they ought to sieve 	I ought to be sieving
you ought to be sieving
he ought to be sieving
we ought to be sieving
you ought to be sieving
they ought to be sieving	I ought to have sieved
you ought to have sieved
he ought to have sieved
we ought to have sieved
you ought to have sieved
they ought to have sieved	I ought to have been sieving
you ought to have been sieving
he ought to have been sieving
we ought to have been sieving
you ought to have been sieving
they ought to have been sieving	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I ought not to sieve
you ought not to sieve
he ought not to sieve
we ought not to sieve
you ought not to sieve
they ought not to sieve 	I ought not to sieving
you ought not to sieving
he ought not to sieving
we ought not to sieving
you ought not to sieving
they ought not to sieving	I ought not to have sieved
you ought not to have sieved
he ought not to have sieved
we ought not to have sieved
you ought not to have sieved
they ought not to have sieved	I ought not to have been sieving
you ought not to have been sieving
he ought not to have been sieving
we ought not to have been sieving
you ought not to have been sieving
they ought not to have been sieving	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
ought to I sieve?
ought to you sieve?
ought to he sieve?
ought to we sieve?
ought to you sieve?
ought to they sieve? 	ought to I be sieving?
ought to you be sieving?
ought to he be sieving?
ought to we be sieving?
ought to you be sieving?
ought to they be sieving? 	ought to I have sieved?
ought to you have sieved?
ought to he have sieved?
ought to we have sieved?
ought to you have sieved?
ought to they have sieved? 	ought to I have been sieving?
ought to you have been sieving?
ought to he have been sieving?
ought to we have been sieving?
ought to you have been sieving?
ought to they have been sieving? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
ought I not to sieve?
ought you not to sieve?
ought he not to sieve?
ought we not to sieve?
ought you not to sieve?
ought they not to sieve? 	ought I not to be sieving?
ought you not to be sieving?
ought he not to be sieving?
ought we not to be sieving?
ought you not to be sieving?
ought they not to be sieving? 	ought I not to have sieved?
ought you not to have sieved?
ought he not to have sieved?
ought we not to have sieved?
ought you not to have sieved?
ought they not to have sieved? 	ought I not to have been sieving?
ought you not to have been sieving?
ought he not to have been sieving?
ought we not to have been sieving?
ought you not to have been sieving?
ought they not to have been sieving?