I must gibber you must gibber he must gibber we must gibber you must gibber they must gibber
Forma com V-ing
I must be gibbering you must be gibbering he must be gibbering we must be gibbering you must be gibbering they must be gibbering
Perfeito
I must have gibbered you must have gibbered he must have gibbered we must have gibbered you must have gibbered they must have gibbered
Perfeito com V-ing
I must have been gibbering you must have been gibbering he must have been gibbering we must have been gibbering you must have been gibbering they must have been gibbering
Negação
Forma simple
I must not gibber you must not gibber he must not gibber we must not gibber you must not gibber they must not gibber
Forma com V-ing
I must not be gibbering you must not be gibbering he must not be gibbering we must not be gibbering you must not be gibbering they must not be gibbering
Perfeito
I must not have gibbered you must not have gibbered he must not have gibbered we must not have gibbered you must not have gibbered they must not have gibbered
Perfeito com V-ing
I must not have been gibbering you must not have been gibbering he must not have been gibbering we must not have been gibbering you must not have been gibbering they must not have been gibbering
Forma interrogativa
Forma simple
must I gibber? must you gibber? must he gibber? must we gibber? must you gibber? must they gibber?
Forma com V-ing
must I be gibbering? must you be gibbering? must he be gibbering? must we be gibbering? must you be gibbering? must they be gibbering?
Perfeito
must I have gibbered? must you have gibbered? must he have gibbered? must we have gibbered? must you have gibbered? must they have gibbered?
Perfeito com V-ing
must I have been gibbering? must you have been gibbering? must he have been gibbering? must we have been gibbering? must you have been gibbering? must they have been gibbering?
Forma interro-Negação
Forma simple
must I not gibber? must you not gibber? must he not gibber? must we not gibber? must you not gibber? must they not gibber?
Forma com V-ing
must I not be gibbering? must you not be gibbering? must he not be gibbering? must we not be gibbering? must you not be gibbering? must they not be gibbering?
Perfeito
must I not have gibbered? must you not have gibbered? must he not have gibbered? must we not have gibbered? must you not have gibbered? must they not have gibbered?
Perfeito com V-ing
must I not have been gibbering? must you not have been gibbering? must he not have been gibbering? must we not have been gibbering? must you not have been gibbering? must they not have been gibbering?