It should be
She can _be _ there at three o'clock.
It should be
we use can before or after subject
for example, can I answer this question
or I can answer that question
these two sentences is correct![]()
i think,
she can be there at three is a right choice
be,, of course..
"be" is correct, without "to"
i think it is be...
Be.. I think.
can+ main verb