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