you can write the verb phrase in each sentence and underline the helping verbs and the mains verbs?

Don Quixote had read the tales.
Could he ignore warnings?
He did consider himself brave.

1. Don Quixote had read the tales.

- Helping verb: had
- Main verb: read

2. Could he ignore warnings?
- Helping verb: could
- Main verb: ignore

3. He did consider himself brave.
- Helping verb: did
- Main verb: consider