modal verbs
obligation
must
have to
exemple
you must stop smoking
you must to feed the animals
he has to wear a uniform
they have to work to
what's?
verb that indicates a modality
obrigation
advice
necessity
others
will
woluld
should
can
could
must
remember
have to is used according to the person, if something is forbidden we use must
tradução; have to só é utilizado segundo a pessoa se for proibição usamos must