The phrase "alleged support" is correct and usable in written English.
It can be used when referring to support that is claimed or asserted but not yet proven or confirmed.
Example: "The organization received alleged support from various donors, though the details remain unclear."
Alternatives: "purported support" or "claimed support".
Indeed, Iran remains the rising regional power and its influence in many Arab capitals ranging from Damascus and Baghdad to Beirut and Sanaa - let alone its human rights record and alleged support for terrorism - all suggest many other avenues for continuing tensions with Washington.
The same newspaper criticized the U.S. alleged support to protesters by featuring a series of articles on the President of the United States titled "Ayatollah Obama and Bahrain".
So what then of Modi's alleged support among young voters?
The peshmerga carried out the attacks in retaliation for alleged support for Isis within Arab communities, the Amnesty report said.
He was expressing exasperation at the Sri Lankan army's alleged support for a "dirty war of attrition".
So, the Mail's mention of Peston's alleged support for Common Purpose - a sting in the tail - is surely irrelevant.
In his turn, Mr Uribe had accused his neighbour of "financing genocide" because of his alleged support for Colombia's leftist rebels.
The US has sanctioned Rwanda over of its alleged support for a Congolese rebel group that sends child soldiers into battle.
The Obama administration is apparently worried that apologising could expose it to criticism from Republicans, given anger over Pakistan's alleged support for militants fighting US troops in Afghanistan.
Rwanda's alleged support for the M23 rebels has opened a diplomatic rift between Kigali and Kinshasa that several regional summits have failed to resolve.
The UN security council will meet on Friday to consider a report on Eritrea's alleged support for subversion across the Horn of Africa.
