I must flounder you must flounder she must flounder we must flounder you must flounder they must flounder
Forma com V-ing
I must be floundering you must be floundering she must be floundering we must be floundering you must be floundering they must be floundering
Perfeito
I must have floundered you must have floundered she must have floundered we must have floundered you must have floundered they must have floundered
Perfeito com V-ing
I must have been floundering you must have been floundering she must have been floundering we must have been floundering you must have been floundering they must have been floundering
Negação
Forma simple
I mustn't flounder you mustn't flounder she mustn't flounder we mustn't flounder you mustn't flounder they mustn't flounder
Forma com V-ing
I mustn't be floundering you mustn't be floundering she mustn't be floundering we mustn't be floundering you mustn't be floundering they mustn't be floundering
Perfeito
I mustn't have floundered you mustn't have floundered she mustn't have floundered we mustn't have floundered you mustn't have floundered they mustn't have floundered
Perfeito com V-ing
I mustn't have been floundering you mustn't have been floundering she mustn't have been floundering we mustn't have been floundering you mustn't have been floundering they mustn't have been floundering
Forma interrogativa
Forma simple
must I flounder? must you flounder? must she flounder? must we flounder? must you flounder? must they flounder?
Forma com V-ing
must I be floundering? must you be floundering? must she be floundering? must we be floundering? must you be floundering? must they be floundering?
Perfeito
must I have floundered? must you have floundered? must she have floundered? must we have floundered? must you have floundered? must they have floundered?
Perfeito com V-ing
must I have been floundering? must you have been floundering? must she have been floundering? must we have been floundering? must you have been floundering? must they have been floundering?
Forma interro-Negação
Forma simple
mustn't I flounder? mustn't you flounder? mustn't she flounder? mustn't we flounder? mustn't you flounder? mustn't they flounder?
Forma com V-ing
mustn't I be floundering? mustn't you be floundering? mustn't she be floundering? mustn't we be floundering? mustn't you be floundering? mustn't they be floundering?
Perfeito
mustn't I have floundered? mustn't you have floundered? mustn't she have floundered? mustn't we have floundered? mustn't you have floundered? mustn't they have floundered?
Perfeito com V-ing
mustn't I have been floundering? mustn't you have been floundering? mustn't she have been floundering? mustn't we have been floundering? mustn't you have been floundering? mustn't they have been floundering?