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
he must prop
we must prop
you must prop
they must prop 	I must be propping
you must be propping
he must be propping
we must be propping
you must be propping
they must be propping	I must have propped
you must have propped
he 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
he 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 must not prop
you must not prop
he must not prop
we must not prop
you must not prop
they must not prop 	I must not be propping
you must not be propping
he must not be propping
we must not be propping
you must not be propping
they must not be propping	I must not have propped
you must not have propped
he must not have propped
we must not have propped
you must not have propped
they must not have propped	I must not have been propping
you must not have been propping
he must not have been propping
we must not have been propping
you must not have been propping
they must not have been propping	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I prop?
must you prop?
must he prop?
must we prop?
must you prop?
must they prop? 	must I be propping?
must you be propping?
must he be propping?
must we be propping?
must you be propping?
must they be propping? 	must I have propped?
must you have propped?
must he 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 he 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 	
must I not prop?
must you not prop?
must he not prop?
must we not prop?
must you not prop?
must they not prop? 	must I not be propping?
must you not be propping?
must he not be propping?
must we not be propping?
must you not be propping?
must they not be propping? 	must I not have propped?
must you not have propped?
must he not have propped?
must we not have propped?
must you not have propped?
must they not have propped? 	must I not have been propping?
must you not have been propping?
must he not have been propping?
must we not have been propping?
must you not have been propping?
must they not have been propping?