I must secure you must secure she must secure we must secure you must secure they must secure
Forma com V-ing
I must be securing you must be securing she must be securing we must be securing you must be securing they must be securing
Perfeito
I must have secured you must have secured she must have secured we must have secured you must have secured they must have secured
Perfeito com V-ing
I must have been securing you must have been securing she must have been securing we must have been securing you must have been securing they must have been securing
Negação
Forma simple
I must not secure you must not secure she must not secure we must not secure you must not secure they must not secure
Forma com V-ing
I must not be securing you must not be securing she must not be securing we must not be securing you must not be securing they must not be securing
Perfeito
I must not have secured you must not have secured she must not have secured we must not have secured you must not have secured they must not have secured
Perfeito com V-ing
I must not have been securing you must not have been securing she must not have been securing we must not have been securing you must not have been securing they must not have been securing
Forma interrogativa
Forma simple
must I secure? must you secure? must she secure? must we secure? must you secure? must they secure?
Forma com V-ing
must I be securing? must you be securing? must she be securing? must we be securing? must you be securing? must they be securing?
Perfeito
must I have secured? must you have secured? must she have secured? must we have secured? must you have secured? must they have secured?
Perfeito com V-ing
must I have been securing? must you have been securing? must she have been securing? must we have been securing? must you have been securing? must they have been securing?
Forma interro-Negação
Forma simple
must I not secure? must you not secure? must she not secure? must we not secure? must you not secure? must they not secure?
Forma com V-ing
must I not be securing? must you not be securing? must she not be securing? must we not be securing? must you not be securing? must they not be securing?
Perfeito
must I not have secured? must you not have secured? must she not have secured? must we not have secured? must you not have secured? must they not have secured?
Perfeito com V-ing
must I not have been securing? must you not have been securing? must she not have been securing? must we not have been securing? must you not have been securing? must they not have been securing?