Conjugação do verbo inglês
MAY COUNTERSIGN

Verbo regular: countersign - countersigned - countersigned

Afirmação

Forma simple	Forma com V-ing
I may countersign you may countersign she may countersign we may countersign you may countersign they may countersign	I may be countersigning you may be countersigning she may be countersigning we may be countersigning you may be countersigning they may be countersigning
Perfeito	Perfeito com V-ing
I may have countersigned you may have countersigned she may have countersigned we may have countersigned you may have countersigned they may have countersigned	I may have been countersigning you may have been countersigning she may have been countersigning we may have been countersigning you may have been countersigning they may have been countersigning

Negação

Forma simple	Forma com V-ing
I mayn't countersign you mayn't countersign she mayn't countersign we mayn't countersign you mayn't countersign they mayn't countersign	I mayn't be countersigning you mayn't be countersigning she mayn't be countersigning we mayn't be countersigning you mayn't be countersigning they mayn't be countersigning
Perfeito	Perfeito com V-ing
I mayn't have countersigned you mayn't have countersigned she mayn't have countersigned we mayn't have countersigned you mayn't have countersigned they mayn't have countersigned	I mayn't have been countersigning you mayn't have been countersigning she mayn't have been countersigning we mayn't have been countersigning you mayn't have been countersigning they mayn't have been countersigning

Forma interrogativa

Forma simple	Forma com V-ing
may I countersign? may you countersign? may she countersign? may we countersign? may you countersign? may they countersign?	may I be countersigning? may you be countersigning? may she be countersigning? may we be countersigning? may you be countersigning? may they be countersigning?
Perfeito	Perfeito com V-ing
may I have countersigned? may you have countersigned? may she have countersigned? may we have countersigned? may you have countersigned? may they have countersigned?	may I have been countersigning? may you have been countersigning? may she have been countersigning? may we have been countersigning? may you have been countersigning? may they have been countersigning?

Forma interro-Negação

Forma simple	Forma com V-ing
mayn't I countersign? mayn't you countersign? mayn't she countersign? mayn't we countersign? mayn't you countersign? mayn't they countersign?	mayn't I be countersigning? mayn't you be countersigning? mayn't she be countersigning? mayn't we be countersigning? mayn't you be countersigning? mayn't they be countersigning?
Perfeito	Perfeito com V-ing
mayn't I have countersigned? mayn't you have countersigned? mayn't she have countersigned? mayn't we have countersigned? mayn't you have countersigned? mayn't they have countersigned?	mayn't I have been countersigning? mayn't you have been countersigning? mayn't she have been countersigning? mayn't we have been countersigning? mayn't you have been countersigning? mayn't they have been countersigning?