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