Отрицательные предложения:

She is not happy with the outcome of the project.They are not ready to leave yet.I am not in the mood to talk right now.It is not easy to forgive and forget.

Утвердительные предложения:

He is a great team player and always helps others.We are excited to be starting a new chapter in our lives.The presentation was well-received by the audience.It is important to be kind to others.