must tabby
Verbe régulier : tabby - tabbied- tabbied

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must tabby
you must tabby
she must tabby
we must tabby
you must tabby
they must tabby 	I must be tabbying
you must be tabbying
she must be tabbying
we must be tabbying
you must be tabbying
they must be tabbying	I must have tabbied
you must have tabbied
she must have tabbied
we must have tabbied
you must have tabbied
they must have tabbied	I must have been tabbying
you must have been tabbying
she must have been tabbying
we must have been tabbying
you must have been tabbying
they must have been tabbying	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not tabby
you must not tabby
she must not tabby
we must not tabby
you must not tabby
they must not tabby 	I must not be tabbying
you must not be tabbying
she must not be tabbying
we must not be tabbying
you must not be tabbying
they must not be tabbying	I must not have tabbied
you must not have tabbied
she must not have tabbied
we must not have tabbied
you must not have tabbied
they must not have tabbied	I must not have been tabbying
you must not have been tabbying
she must not have been tabbying
we must not have been tabbying
you must not have been tabbying
they must not have been tabbying	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I tabby?
must you tabby?
must she tabby?
must we tabby?
must you tabby?
must they tabby? 	must I be tabbying?
must you be tabbying?
must she be tabbying?
must we be tabbying?
must you be tabbying?
must they be tabbying? 	must I have tabbied?
must you have tabbied?
must she have tabbied?
must we have tabbied?
must you have tabbied?
must they have tabbied? 	must I have been tabbying?
must you have been tabbying?
must she have been tabbying?
must we have been tabbying?
must you have been tabbying?
must they have been tabbying? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not tabby?
must you not tabby?
must she not tabby?
must we not tabby?
must you not tabby?
must they not tabby? 	must I not be tabbying?
must you not be tabbying?
must she not be tabbying?
must we not be tabbying?
must you not be tabbying?
must they not be tabbying? 	must I not have tabbied?
must you not have tabbied?
must she not have tabbied?
must we not have tabbied?
must you not have tabbied?
must they not have tabbied? 	must I not have been tabbying?
must you not have been tabbying?
must she not have been tabbying?
must we not have been tabbying?
must you not have been tabbying?
must they not have been tabbying?