Among them are the Oromo Liberation Front (OLF) and the Oromo Federalist Congress (OF).
A few high-profile OF individuals stay in a correctional facility after a flood of distress last year started by the killing of a well known Oromo performer, and the OLF's chief is under house capture. The head of the Calderas Party for True Democracy, Es kinder Nega, was likewise captured and is challenging the political decision from jail.
On Sunday, five resistance groups delivered a joint articulation saying that battling outside the capital, Addis Ababa, "has been damaged by major issues, including killings, endeavored killings and beatings of applicants".
However, some are deciding to remain in the race trusting their cooperation will help the country in its journey to democratize.
"We are exceptionally cheerful as we say it inside we are making life surprisingly difficult for the decision party," Nathaniel Elena, of the Ethiopia Citizens for Social Justice party, revealed to Al Jazeera. "We will keep doing that until the missions are finished. Also, we are confident that the following parliament won't be just about as dull as the past ones."
View from outside
Notwithstanding Abiy's vows, there are developing global worries about whether the decisions will be reasonable.
The European Union has said it won't notice the vote after its solicitations to import interchanges gear were denied.