I may cost you may cost he may cost we may cost you may cost they may cost
Forma com V-ing
I may be costing you may be costing he may be costing we may be costing you may be costing they may be costing
Perfeito
I may have cost you may have cost he may have cost we may have cost you may have cost they may have cost
Perfeito com V-ing
I may have been costing you may have been costing he may have been costing we may have been costing you may have been costing they may have been costing
Negação
Forma simple
I may not cost you may not cost he may not cost we may not cost you may not cost they may not cost
Forma com V-ing
I may not be costing you may not be costing he may not be costing we may not be costing you may not be costing they may not be costing
Perfeito
I may not have cost you may not have cost he may not have cost we may not have cost you may not have cost they may not have cost
Perfeito com V-ing
I may not have been costing you may not have been costing he may not have been costing we may not have been costing you may not have been costing they may not have been costing
Forma interrogativa
Forma simple
may I cost? may you cost? may he cost? may we cost? may you cost? may they cost?
Forma com V-ing
may I be costing? may you be costing? may he be costing? may we be costing? may you be costing? may they be costing?
Perfeito
may I have cost? may you have cost? may he have cost? may we have cost? may you have cost? may they have cost?
Perfeito com V-ing
may I have been costing? may you have been costing? may he have been costing? may we have been costing? may you have been costing? may they have been costing?
Forma interro-Negação
Forma simple
may I not cost? may you not cost? may he not cost? may we not cost? may you not cost? may they not cost?
Forma com V-ing
may I not be costing? may you not be costing? may he not be costing? may we not be costing? may you not be costing? may they not be costing?
Perfeito
may I not have cost? may you not have cost? may he not have cost? may we not have cost? may you not have cost? may they not have cost?
Perfeito com V-ing
may I not have been costing? may you not have been costing? may he not have been costing? may we not have been costing? may you not have been costing? may they not have been costing?