Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I must rivet sth you must rivet sth she must rivet sth we must rivet sth you must rivet sth they must rivet sth
V-ing form
I must be rivet sthing you must be rivet sthing she must be rivet sthing we must be rivet sthing you must be rivet sthing they must be rivet sthing
Perfect
I must have rivet sthed you must have rivet sthed she must have rivet sthed we must have rivet sthed you must have rivet sthed they must have rivet sthed
V-ing perfect
I must have been rivet sthing you must have been rivet sthing she must have been rivet sthing we must have been rivet sthing you must have been rivet sthing they must have been rivet sthing
Negation
Simple form
I mustn't rivet sth you mustn't rivet sth she mustn't rivet sth we mustn't rivet sth you mustn't rivet sth they mustn't rivet sth
V-ing form
I mustn't be rivet sthing you mustn't be rivet sthing she mustn't be rivet sthing we mustn't be rivet sthing you mustn't be rivet sthing they mustn't be rivet sthing
Perfect
I mustn't have rivet sthed you mustn't have rivet sthed she mustn't have rivet sthed we mustn't have rivet sthed you mustn't have rivet sthed they mustn't have rivet sthed
V-ing perfect
I mustn't have been rivet sthing you mustn't have been rivet sthing she mustn't have been rivet sthing we mustn't have been rivet sthing you mustn't have been rivet sthing they mustn't have been rivet sthing
Interrogative form
Simple form
must I rivet sth? must you rivet sth? must she rivet sth? must we rivet sth? must you rivet sth? must they rivet sth?
V-ing form
must I be rivet sthing? must you be rivet sthing? must she be rivet sthing? must we be rivet sthing? must you be rivet sthing? must they be rivet sthing?
Perfect
must I have rivet sthed? must you have rivet sthed? must she have rivet sthed? must we have rivet sthed? must you have rivet sthed? must they have rivet sthed?
V-ing perfect
must I have been rivet sthing? must you have been rivet sthing? must she have been rivet sthing? must we have been rivet sthing? must you have been rivet sthing? must they have been rivet sthing?
Interro-negative form
Simple form
mustn't I rivet sth? mustn't you rivet sth? mustn't she rivet sth? mustn't we rivet sth? mustn't you rivet sth? mustn't they rivet sth?
V-ing form
mustn't I be rivet sthing? mustn't you be rivet sthing? mustn't she be rivet sthing? mustn't we be rivet sthing? mustn't you be rivet sthing? mustn't they be rivet sthing?
Perfect
mustn't I have rivet sthed? mustn't you have rivet sthed? mustn't she have rivet sthed? mustn't we have rivet sthed? mustn't you have rivet sthed? mustn't they have rivet sthed?
V-ing perfect
mustn't I have been rivet sthing? mustn't you have been rivet sthing? mustn't she have been rivet sthing? mustn't we have been rivet sthing? mustn't you have been rivet sthing? mustn't they have been rivet sthing?