Ring vs. Rang vs. Rung

You can tell when to use ring, rang, or rung by whether you need the present, past, or past participle (used with has or have) form.

Present: ring
Example: I always ring the bell after I knock.
Example: He rings twice before entering.

Past: rang
Example: I rang the bell after I knocked.
Example: He rang twice before entering.

Past Participle: has or have rung
Past participles are used with all perfect forms of a verb.

Present Perfect Form
Examples: I have rung the bell.
She has rung the bell.

Past Perfect Form
Examples: I had rung the bell.
She had rung the bell.

Future Perfect Form
Example: I will have rung the bell by noon if the automated system is still malfunctioning.

Conditional Perfect Form
Example: I would have rung the bell if the automated system had still been malfunctioning.

The present participle of ring is ringing. Present participles are used with “to be” verbs.

Examples: I am ringing the bell.
She was ringing the bell.
We will be ringing the bell