Helping verbs
Primary Helping Verbs
To be
- am
- is
- are
- was
- were
To do
- do
- does
- did
To have
- have
- has
- had
Modals
can / could
- can
- could
may / might
- may
- might
will / would
- will
- would
shall / should
- shall
- should
must
need
dare
used to
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