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