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