must cross-check
Verbe régulier : cross-check - cross-checked- cross-checked
Traduction française : contrôler (par contre-épreuve ou par recoupement) - vérifier par recoupement 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must cross-check
you must cross-check
she must cross-check
we must cross-check
you must cross-check
they must cross-check 	I must be cross-checking
you must be cross-checking
she must be cross-checking
we must be cross-checking
you must be cross-checking
they must be cross-checking	I must have cross-checked
you must have cross-checked
she must have cross-checked
we must have cross-checked
you must have cross-checked
they must have cross-checked	I must have been cross-checking
you must have been cross-checking
she must have been cross-checking
we must have been cross-checking
you must have been cross-checking
they must have been cross-checking	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not cross-check
you must not cross-check
she must not cross-check
we must not cross-check
you must not cross-check
they must not cross-check 	I must not be cross-checking
you must not be cross-checking
she must not be cross-checking
we must not be cross-checking
you must not be cross-checking
they must not be cross-checking	I must not have cross-checked
you must not have cross-checked
she must not have cross-checked
we must not have cross-checked
you must not have cross-checked
they must not have cross-checked	I must not have been cross-checking
you must not have been cross-checking
she must not have been cross-checking
we must not have been cross-checking
you must not have been cross-checking
they must not have been cross-checking	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I cross-check?
must you cross-check?
must she cross-check?
must we cross-check?
must you cross-check?
must they cross-check? 	must I be cross-checking?
must you be cross-checking?
must she be cross-checking?
must we be cross-checking?
must you be cross-checking?
must they be cross-checking? 	must I have cross-checked?
must you have cross-checked?
must she have cross-checked?
must we have cross-checked?
must you have cross-checked?
must they have cross-checked? 	must I have been cross-checking?
must you have been cross-checking?
must she have been cross-checking?
must we have been cross-checking?
must you have been cross-checking?
must they have been cross-checking? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not cross-check?
must you not cross-check?
must she not cross-check?
must we not cross-check?
must you not cross-check?
must they not cross-check? 	must I not be cross-checking?
must you not be cross-checking?
must she not be cross-checking?
must we not be cross-checking?
must you not be cross-checking?
must they not be cross-checking? 	must I not have cross-checked?
must you not have cross-checked?
must she not have cross-checked?
must we not have cross-checked?
must you not have cross-checked?
must they not have cross-checked? 	must I not have been cross-checking?
must you not have been cross-checking?
must she not have been cross-checking?
must we not have been cross-checking?
must you not have been cross-checking?
must they not have been cross-checking?