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