I ought to liquefy you ought to liquefy she ought to liquefy we ought to liquefy you ought to liquefy they ought to liquefy
V-ing form
I ought to be liquefying you ought to be liquefying she ought to be liquefying we ought to be liquefying you ought to be liquefying they ought to be liquefying
Perfect
I ought to have liquefied you ought to have liquefied she ought to have liquefied we ought to have liquefied you ought to have liquefied they ought to have liquefied
V-ing perfect
I ought to have been liquefying you ought to have been liquefying she ought to have been liquefying we ought to have been liquefying you ought to have been liquefying they ought to have been liquefying
Negation
Simple form
I ought not to liquefy you ought not to liquefy she ought not to liquefy we ought not to liquefy you ought not to liquefy they ought not to liquefy
V-ing form
I ought not to liquefying you ought not to liquefying she ought not to liquefying we ought not to liquefying you ought not to liquefying they ought not to liquefying
Perfect
I ought not to have liquefied you ought not to have liquefied she ought not to have liquefied we ought not to have liquefied you ought not to have liquefied they ought not to have liquefied
V-ing perfect
I ought not to have been liquefying you ought not to have been liquefying she ought not to have been liquefying we ought not to have been liquefying you ought not to have been liquefying they ought not to have been liquefying
Interrogative form
Simple form
ought to I liquefy? ought to you liquefy? ought to she liquefy? ought to we liquefy? ought to you liquefy? ought to they liquefy?
V-ing form
ought to I be liquefying? ought to you be liquefying? ought to she be liquefying? ought to we be liquefying? ought to you be liquefying? ought to they be liquefying?
Perfect
ought to I have liquefied? ought to you have liquefied? ought to she have liquefied? ought to we have liquefied? ought to you have liquefied? ought to they have liquefied?
V-ing perfect
ought to I have been liquefying? ought to you have been liquefying? ought to she have been liquefying? ought to we have been liquefying? ought to you have been liquefying? ought to they have been liquefying?
Interro-negative form
Simple form
ought I not to liquefy? ought you not to liquefy? ought she not to liquefy? ought we not to liquefy? ought you not to liquefy? ought they not to liquefy?
V-ing form
ought I not to be liquefying? ought you not to be liquefying? ought she not to be liquefying? ought we not to be liquefying? ought you not to be liquefying? ought they not to be liquefying?
Perfect
ought I not to have liquefied? ought you not to have liquefied? ought she not to have liquefied? ought we not to have liquefied? ought you not to have liquefied? ought they not to have liquefied?
V-ing perfect
ought I not to have been liquefying? ought you not to have been liquefying? ought she not to have been liquefying? ought we not to have been liquefying? ought you not to have been liquefying? ought they not to have been liquefying?