must discourage
Regular verb: discourage - discouraged- discouraged

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must discourage
you must discourage
he must discourage
we must discourage
you must discourage
they must discourage 	I must be discouraging
you must be discouraging
he must be discouraging
we must be discouraging
you must be discouraging
they must be discouraging	I must have discouraged
you must have discouraged
he must have discouraged
we must have discouraged
you must have discouraged
they must have discouraged	I must have been discouraging
you must have been discouraging
he must have been discouraging
we must have been discouraging
you must have been discouraging
they must have been discouraging	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not discourage
you must not discourage
he must not discourage
we must not discourage
you must not discourage
they must not discourage 	I must not be discouraging
you must not be discouraging
he must not be discouraging
we must not be discouraging
you must not be discouraging
they must not be discouraging	I must not have discouraged
you must not have discouraged
he must not have discouraged
we must not have discouraged
you must not have discouraged
they must not have discouraged	I must not have been discouraging
you must not have been discouraging
he must not have been discouraging
we must not have been discouraging
you must not have been discouraging
they must not have been discouraging	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I discourage?
must you discourage?
must he discourage?
must we discourage?
must you discourage?
must they discourage? 	must I be discouraging?
must you be discouraging?
must he be discouraging?
must we be discouraging?
must you be discouraging?
must they be discouraging? 	must I have discouraged?
must you have discouraged?
must he have discouraged?
must we have discouraged?
must you have discouraged?
must they have discouraged? 	must I have been discouraging?
must you have been discouraging?
must he have been discouraging?
must we have been discouraging?
must you have been discouraging?
must they have been discouraging? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not discourage?
must you not discourage?
must he not discourage?
must we not discourage?
must you not discourage?
must they not discourage? 	must I not be discouraging?
must you not be discouraging?
must he not be discouraging?
must we not be discouraging?
must you not be discouraging?
must they not be discouraging? 	must I not have discouraged?
must you not have discouraged?
must he not have discouraged?
must we not have discouraged?
must you not have discouraged?
must they not have discouraged? 	must I not have been discouraging?
must you not have been discouraging?
must he not have been discouraging?
must we not have been discouraging?
must you not have been discouraging?
must they not have been discouraging?