must respire
Verbe régulier : respire - respired- respired
Traduction française : respirer - respirer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must respire
you must respire
she must respire
we must respire
you must respire
they must respire 	I must be respiring
you must be respiring
she must be respiring
we must be respiring
you must be respiring
they must be respiring	I must have respired
you must have respired
she must have respired
we must have respired
you must have respired
they must have respired	I must have been respiring
you must have been respiring
she must have been respiring
we must have been respiring
you must have been respiring
they must have been respiring	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not respire
you must not respire
she must not respire
we must not respire
you must not respire
they must not respire 	I must not be respiring
you must not be respiring
she must not be respiring
we must not be respiring
you must not be respiring
they must not be respiring	I must not have respired
you must not have respired
she must not have respired
we must not have respired
you must not have respired
they must not have respired	I must not have been respiring
you must not have been respiring
she must not have been respiring
we must not have been respiring
you must not have been respiring
they must not have been respiring	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I respire?
must you respire?
must she respire?
must we respire?
must you respire?
must they respire? 	must I be respiring?
must you be respiring?
must she be respiring?
must we be respiring?
must you be respiring?
must they be respiring? 	must I have respired?
must you have respired?
must she have respired?
must we have respired?
must you have respired?
must they have respired? 	must I have been respiring?
must you have been respiring?
must she have been respiring?
must we have been respiring?
must you have been respiring?
must they have been respiring? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not respire?
must you not respire?
must she not respire?
must we not respire?
must you not respire?
must they not respire? 	must I not be respiring?
must you not be respiring?
must she not be respiring?
must we not be respiring?
must you not be respiring?
must they not be respiring? 	must I not have respired?
must you not have respired?
must she not have respired?
must we not have respired?
must you not have respired?
must they not have respired? 	must I not have been respiring?
must you not have been respiring?
must she not have been respiring?
must we not have been respiring?
must you not have been respiring?
must they not have been respiring?