The phrase "are working to send" is correct and usable in written English.
It can be used when describing an ongoing effort or action aimed at delivering something to someone or somewhere.
Example: "We are working to send the updated documents to all team members by the end of the day."
Alternatives: "are striving to deliver" or "are attempting to dispatch".
Now the groups are working to send immigrants who are voters to pay frequent visits to federal lawmakers who have not supported an overhaul.
Venezuela and the United States are working to send ambassadors back to each other's capitals, a State Department spokesman, Ian C. Kelly, said Wednesday.
Meanwhile, those of us fighting to stave off climate chaos are working to send a palatable message, telling one another that we cannot scare people to death and that alarmism is ineffective.
So it's for the dreamers and the parents who are working to send their children to school".
By joining together, both as a faith community, and as a national and global community, we are working to send a clear message that action must be taken.
It's the look I see each time I meet one of our clients at Opportunity International--women entrepreneurs around the globe who are working to send their children to school and reverse the cycle of poverty they were born into.
It has spent $1 million on television commercials and is working to send experts around the country.
Prosper said yesterday that the U.S. government is working to send 129 Saudis and 107 Yemenis from Guantanamo to the custody of their home countries.
He's been here for six years; he's working to send money back to his wife, who has to have a heart operation.
"You find they have a capacity to lead a productive life," he said, but instead they face the possibility of many years in prison -- a prospect Mr. Simon finds starker now than when he was working to send people there.
That means advertisers will have a better understanding of which online ad activity – not just video – is working to send people to stores.
