Vice President Leni Robredo said the Liberal Party is "not doing enough" in showing its opposition to some of the policies of President Rodrigo Duterte but explained that she understands the reason behind it.

"The LP is not doing enough at this point, and I understand why," Robredo said in a forum hosted by the Philippine Daily Inquirer on Thursday.

Robredo said the party has been "complacent" following the term of former president Benigno Aquino III since it was the ruling party at the time.

She admitted the LP was "unprepared" as the new opposition, saying they were surprised with the turnout of events.

"Parang nabulaga din kasi yung LP. We were the dominant party and suddenly...nasa baba and we were not prepared for it," she said.

(The LP was caught unawares...We were the dominant party and suddenly...we were at the bottom and we were not prepared for it.)

The Liberal Party has since been asked to leave the supermajority of Congress, which is dominated by supporters of President Rodrigo Duterte, and follow the footsteps of Robredo who left her post as Housing Secretary.

However, Robredo said that since the party now has an acting President, Francis "Kiko" Pangilinan, they are set to formally convene in the first quarter of 2017, most likely in January.

The Vice President also dismissed allegations that she is a "minion" of the LP, and responded to the accusations of the President against the "yellows," of planning his ouster since they cannot accept defeat.

"I think at this time it is unfair for the Liberal Party to be accused," Robredo said.

• Kiko: No 'yellow' plot for Duterte ouster