The phrase "have failed to send" is correct and usable in written English.
It can be used when indicating that someone has not successfully sent something, typically in a formal or professional context.
Example: "We have failed to send the required documents by the deadline."
Alternatives: "have not sent" or "did not send."
How can you sit here and have a conversation with me?' " The way Ms. Smith sees it, it's acceptable to confront those guests who have failed to send even a token.
The Justice Department, which is reported to be looking at Riggs, now has a chance to send a message that the banking regulators have failed to send: that money laundering is a serious crime.
And something else to consider: the events of the past few years, in which a tripling of the monetary base has failed to set off high inflation, and huge deficits have failed to send interest rates soaring, represent a predictive success for IS-LM-type macro fully comparable to the way stagflation represented a success for macro with thinking about microfoundations.
About 300,000 people who have failed to send in their tax returns for 2010-11 may have their goods seized.
A valve had failed to send water for the boiler to heat into steam.
Nor was Dives in hell because he had failed to send alms to Lazarus.
But despite my repeated requests, it has failed to send me the results.
According to Companies House records, Consumer Reclaim Ltd has failed to send in annual returns due on 12 May and is subject to a "proposal to strike off".
Then, looking around, I had an idea: "How about a panoramic?" On our last morning, I realized in a panic that I had failed to send postcards.
Ivan Rybkin, boss of Mr Yeltsin's security council, whose main job is to nurture Russian-Chechen relations, has complained that Russia has failed to send Chechnya the $80m it promised last year for post-war reconstruction.
Furthermore, Bennett may have lost interest and forgotten about the whole project, for when Stanley arrived in Zanzibar, the jumping-off point for his expedition, he found that Bennett had failed to send promised money for supplies.
