must prop
Verbe régulier : prop - propped- propped
Traduction française : appuyer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must prop
you must prop
she must prop
we must prop
you must prop
they must prop 	I must be propping
you must be propping
she must be propping
we must be propping
you must be propping
they must be propping	I must have propped
you must have propped
she must have propped
we must have propped
you must have propped
they must have propped	I must have been propping
you must have been propping
she must have been propping
we must have been propping
you must have been propping
they must have been propping	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't prop
you mustn't prop
she mustn't prop
we mustn't prop
you mustn't prop
they mustn't prop 	I mustn't be propping
you mustn't be propping
she mustn't be propping
we mustn't be propping
you mustn't be propping
they mustn't be propping	I mustn't have propped
you mustn't have propped
she mustn't have propped
we mustn't have propped
you mustn't have propped
they mustn't have propped	I mustn't have been propping
you mustn't have been propping
she mustn't have been propping
we mustn't have been propping
you mustn't have been propping
they mustn't have been propping	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I prop?
must you prop?
must she prop?
must we prop?
must you prop?
must they prop? 	must I be propping?
must you be propping?
must she be propping?
must we be propping?
must you be propping?
must they be propping? 	must I have propped?
must you have propped?
must she have propped?
must we have propped?
must you have propped?
must they have propped? 	must I have been propping?
must you have been propping?
must she have been propping?
must we have been propping?
must you have been propping?
must they have been propping? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I prop?
mustn't you prop?
mustn't she prop?
mustn't we prop?
mustn't you prop?
mustn't they prop? 	mustn't I be propping?
mustn't you be propping?
mustn't she be propping?
mustn't we be propping?
mustn't you be propping?
mustn't they be propping? 	mustn't I have propped?
mustn't you have propped?
mustn't she have propped?
mustn't we have propped?
mustn't you have propped?
mustn't they have propped? 	mustn't I have been propping?
mustn't you have been propping?
mustn't she have been propping?
mustn't we have been propping?
mustn't you have been propping?
mustn't they have been propping?