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