You visit your grandmother. When you're leaving, she tries to give you some money but you say "No thanks." She tells you that you have to take it. This is how you describe these events to a friend.
You were talking to your son in the morning, but now you have to go to work. You say this to him before saying goodbye.
You've just boarded an airplane. Everyone is now on the plane, but people are still putting away their bags and other things. The flight attendant says this.
You are raising three young children as a single parent while also working full time. You're talking to a coworker who says that it must be hard for you. It is, but you're able to survive. You say this in response.
You're going on vacation. You want to leave a message on your e-mail that lets people know that you're not at work. You write this in your out-of-office message.