Conjugação do verbo inglês
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Verbo regular: engrave - engraved - engraved

Afirmação

Forma simple	Forma com V-ing
I must engrave you must engrave he must engrave we must engrave you must engrave they must engrave	I must be engraving you must be engraving he must be engraving we must be engraving you must be engraving they must be engraving
Perfeito	Perfeito com V-ing
I must have engraved you must have engraved he must have engraved we must have engraved you must have engraved they must have engraved	I must have been engraving you must have been engraving he must have been engraving we must have been engraving you must have been engraving they must have been engraving

Negação

Forma simple	Forma com V-ing
I mustn't engrave you mustn't engrave he mustn't engrave we mustn't engrave you mustn't engrave they mustn't engrave	I mustn't be engraving you mustn't be engraving he mustn't be engraving we mustn't be engraving you mustn't be engraving they mustn't be engraving
Perfeito	Perfeito com V-ing
I mustn't have engraved you mustn't have engraved he mustn't have engraved we mustn't have engraved you mustn't have engraved they mustn't have engraved	I mustn't have been engraving you mustn't have been engraving he mustn't have been engraving we mustn't have been engraving you mustn't have been engraving they mustn't have been engraving

Forma interrogativa

Forma simple	Forma com V-ing
must I engrave? must you engrave? must he engrave? must we engrave? must you engrave? must they engrave?	must I be engraving? must you be engraving? must he be engraving? must we be engraving? must you be engraving? must they be engraving?
Perfeito	Perfeito com V-ing
must I have engraved? must you have engraved? must he have engraved? must we have engraved? must you have engraved? must they have engraved?	must I have been engraving? must you have been engraving? must he have been engraving? must we have been engraving? must you have been engraving? must they have been engraving?

Forma interro-Negação

Forma simple	Forma com V-ing
mustn't I engrave? mustn't you engrave? mustn't he engrave? mustn't we engrave? mustn't you engrave? mustn't they engrave?	mustn't I be engraving? mustn't you be engraving? mustn't he be engraving? mustn't we be engraving? mustn't you be engraving? mustn't they be engraving?
Perfeito	Perfeito com V-ing
mustn't I have engraved? mustn't you have engraved? mustn't he have engraved? mustn't we have engraved? mustn't you have engraved? mustn't they have engraved?	mustn't I have been engraving? mustn't you have been engraving? mustn't he have been engraving? mustn't we have been engraving? mustn't you have been engraving? mustn't they have been engraving?