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