I ought to assemble you ought to assemble he ought to assemble we ought to assemble you ought to assemble they ought to assemble
V-ing form
I ought to be assembling you ought to be assembling he ought to be assembling we ought to be assembling you ought to be assembling they ought to be assembling
Perfect
I ought to have assembled you ought to have assembled he ought to have assembled we ought to have assembled you ought to have assembled they ought to have assembled
V-ing perfect
I ought to have been assembling you ought to have been assembling he ought to have been assembling we ought to have been assembling you ought to have been assembling they ought to have been assembling
Negation
Simple form
I oughtn't to assemble you oughtn't to assemble he oughtn't to assemble we oughtn't to assemble you oughtn't to assemble they oughtn't to assemble
V-ing form
I oughtn't to be assembling you oughtn't to be assembling he oughtn't to be assembling we oughtn't to be assembling you oughtn't to be assembling they oughtn't to be assembling
Perfect
I oughtn't to have assembled you oughtn't to have assembled he oughtn't to have assembled we oughtn't to have assembled you oughtn't to have assembled they oughtn't to have assembled
V-ing perfect
I oughtn't to have been assembling you oughtn't to have been assembling he oughtn't to have been assembling we oughtn't to have been assembling you oughtn't to have been assembling they oughtn't to have been assembling
Interrogative form
Simple form
ought to I assemble? ought to you assemble? ought to he assemble? ought to we assemble? ought to you assemble? ought to they assemble?
V-ing form
ought to I be assembling? ought to you be assembling? ought to he be assembling? ought to we be assembling? ought to you be assembling? ought to they be assembling?
Perfect
ought to I have assembled? ought to you have assembled? ought to he have assembled? ought to we have assembled? ought to you have assembled? ought to they have assembled?
V-ing perfect
ought to I have been assembling? ought to you have been assembling? ought to he have been assembling? ought to we have been assembling? ought to you have been assembling? ought to they have been assembling?
Interro-negative form
Simple form
oughtn't I to assemble? oughtn't you to assemble? oughtn't he to assemble? oughtn't we to assemble? oughtn't you to assemble? oughtn't they to assemble?
V-ing form
oughtn't I to be assembling? oughtn't you to be assembling? oughtn't he to be assembling? oughtn't we to be assembling? oughtn't you to be assembling? oughtn't they to be assembling?
Perfect
oughtn't I to have assembled? oughtn't you to have assembled? oughtn't he to have assembled? oughtn't we to have assembled? oughtn't you to have assembled? oughtn't they to have assembled?
V-ing perfect
oughtn't I to have been assembling? oughtn't you to have been assembling? oughtn't he to have been assembling? oughtn't we to have been assembling? oughtn't you to have been assembling? oughtn't they to have been assembling?