must establish
Verbe régulier : establish - established- established
Traduction française : fonder - affermir 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must establish
you must establish
she must establish
we must establish
you must establish
they must establish 	I must be establishing
you must be establishing
she must be establishing
we must be establishing
you must be establishing
they must be establishing	I must have established
you must have established
she must have established
we must have established
you must have established
they must have established	I must have been establishing
you must have been establishing
she must have been establishing
we must have been establishing
you must have been establishing
they must have been establishing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not establish
you must not establish
she must not establish
we must not establish
you must not establish
they must not establish 	I must not be establishing
you must not be establishing
she must not be establishing
we must not be establishing
you must not be establishing
they must not be establishing	I must not have established
you must not have established
she must not have established
we must not have established
you must not have established
they must not have established	I must not have been establishing
you must not have been establishing
she must not have been establishing
we must not have been establishing
you must not have been establishing
they must not have been establishing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I establish?
must you establish?
must she establish?
must we establish?
must you establish?
must they establish? 	must I be establishing?
must you be establishing?
must she be establishing?
must we be establishing?
must you be establishing?
must they be establishing? 	must I have established?
must you have established?
must she have established?
must we have established?
must you have established?
must they have established? 	must I have been establishing?
must you have been establishing?
must she have been establishing?
must we have been establishing?
must you have been establishing?
must they have been establishing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not establish?
must you not establish?
must she not establish?
must we not establish?
must you not establish?
must they not establish? 	must I not be establishing?
must you not be establishing?
must she not be establishing?
must we not be establishing?
must you not be establishing?
must they not be establishing? 	must I not have established?
must you not have established?
must she not have established?
must we not have established?
must you not have established?
must they not have established? 	must I not have been establishing?
must you not have been establishing?
must she not have been establishing?
must we not have been establishing?
must you not have been establishing?
must they not have been establishing?