i Register
In some senses, summon is marked as slang, colloquial. Watch for register when choosing this word.
ADV
duly | hastily, urgently | back
PREP
for
He was summoned for jury duty last month and had to take time off work.
from
The witness was summoned from her home to answer questions about the accident.
to
The witness was summoned to appear in court next Monday morning.
ADV
barely, hardly
She could barely summon enough courage to ask her boss for a raise.
up
VERB + SUMMON
can/could | try to
manage to
He managed to summon the courage to ask her out after months of nervousness.