The phrase "send a message" is correct and usable in written English. You can use it to describe the act of delivering a written or electronic communication from one person to another. For example: "I need to send a message to John about our upcoming meeting."
It can send a message.
"Did you send a message?" they asked.
They have to send a message".
He had to send a message".
"We've got to send a message".
He would send a message.
That will send a message.
China will kill to send a message.
Are you intending to send a message?
But Italians did send a message.
I wasn't trying to send a message.
Awesome tool! I started using it one year ago and I never had to look for another app
Ha Thuy Vy
MA of Applied Linguistic, Maquarie University, Australia