must gather
Verbo regular: gather - gathered- gathered

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must gather
you must gather
he must gather
we must gather
you must gather
they must gather 	I must be gathering
you must be gathering
he must be gathering
we must be gathering
you must be gathering
they must be gathering	I must have gathered
you must have gathered
he must have gathered
we must have gathered
you must have gathered
they must have gathered	I must have been gathering
you must have been gathering
he must have been gathering
we must have been gathering
you must have been gathering
they must have been gathering	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not gather
you must not gather
he must not gather
we must not gather
you must not gather
they must not gather 	I must not be gathering
you must not be gathering
he must not be gathering
we must not be gathering
you must not be gathering
they must not be gathering	I must not have gathered
you must not have gathered
he must not have gathered
we must not have gathered
you must not have gathered
they must not have gathered	I must not have been gathering
you must not have been gathering
he must not have been gathering
we must not have been gathering
you must not have been gathering
they must not have been gathering	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I gather?
must you gather?
must he gather?
must we gather?
must you gather?
must they gather? 	must I be gathering?
must you be gathering?
must he be gathering?
must we be gathering?
must you be gathering?
must they be gathering? 	must I have gathered?
must you have gathered?
must he have gathered?
must we have gathered?
must you have gathered?
must they have gathered? 	must I have been gathering?
must you have been gathering?
must he have been gathering?
must we have been gathering?
must you have been gathering?
must they have been gathering? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not gather?
must you not gather?
must he not gather?
must we not gather?
must you not gather?
must they not gather? 	must I not be gathering?
must you not be gathering?
must he not be gathering?
must we not be gathering?
must you not be gathering?
must they not be gathering? 	must I not have gathered?
must you not have gathered?
must he not have gathered?
must we not have gathered?
must you not have gathered?
must they not have gathered? 	must I not have been gathering?
must you not have been gathering?
must he not have been gathering?
must we not have been gathering?
must you not have been gathering?
must they not have been gathering?