The challenges we face are opportunities for growth.

The children play in the park.

The irregular verbs in English have different forms for past tense and past participle.

The dogs barked loudly at the mailman.

The controls on the video game are easy to use.

The auxiliaries in this sentence are helping the main verb.

Modal verbs are important for expressing different degrees of possibility.

The helping verbs are important in forming tenses.

The dogs chase the cats.

The birds fly in the sky.