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