The correct answers are We encourage the parrots to sing loudly every morning., The counselors allow the birds to rest after lunch., and We invite all pet owners to watch the final concert.

The verbs encourage, allow, and invite all follow the same pattern: Verb + Object + To Infinitive.

• encourage + the parrots + to sing

• allow + the birds + to rest

• invite + all pet owners + to watch

Remember, you must include "to" before the action verb, and you should never put an extra "to" before the object!