MODAL VERBS
Modal verbs are auxiliary verbs that can not function as a main verb
Modal verbs express modality, ability, possibility, need or other condition.
CAN
indicates ability or possibility. In these cases it can be translated as "poder" in Spanish.
EXAMPLE
I can speak five languages.
COULD
Indicates ability or possibility in past
EXAMPLE
Joe could speak Spanish when he was young
MAY
Indicates possibility in the future
EXAMPLE
I would bring an umbrella, it may rain later.
SHOULD
indicates an obligation or recommendation. Reflects an opinion about what is right. It is translated as the conditional of "deber" in Spanish.
EXAMPLE
I should call my parents more often
WILL
to form the future time.
EXAMPLE
I will help you
MIGHT
to indicate possibilities in the present or the future. In these cases, it is a synonym of "may".
EXAMPLE
It might be better to finish this now, rather than wait until tomorrow.
WOULD
to declare a preference and to ask for something politely.
EXAMPLE
I would bring an umbrella, it may rain later.
