Persist and Insist
Incorrect : She insisted in misunderstanding me.
Correct : She persisted in misunderstanding me.
Incorrect : He persisted on his innocence.
Correct : He insisted on/upon his innocence.
Note: "To persist” is to continue in a course of action or way of behaving in spite of opposition or warning. This verb is usually followed by “in'. On the other hand, "to insist' is to declare firmly in the face of doubt or opposition. It can also mean "to order or demand that something must happen or be done. For example:
He insisted on going there.
This verb is usually followed by "on' or “upon”.
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