MONTREAL - Holding a leaked document in his hands, the Parti Quebecois' language critic revealed on Thursday what he thinks will be the Liberal government's first move to call a spring election.

In an event Yves-Francois Blanchet says is designed to make the party more appealing to French voters, Culture Minister Christine St. Pierre is expected to ask partners to sign a special declaration about the French language on April 27.

Called "Building our future together in French," St. Pierre is expected to be flanked by Finance Minister Raymond Bachand and Immigration Minister Kathleen Weil as she makes the announcement in front of Montreal's Monument-National.

A similar event was held before a snap election was called in 2008.

"They are inviting groups to sign a document that says very nice things about the French language, but engages no one to do anything serious," said Blanchet.

"This is what they did then and now they are doing it again. This suggests that they serious about going into election again."

With Mayor Gerald Tremblay, the president of the Montreal Chamber of Commerce and other business leaders on hand, the event is expected to be a major push to protect the French language.

"There are no calculations being made here, stop imagining these scenarios," St. Pierre told reporters outside of the National Assembly.

Other members of the Liberal caucus were dismissive or coy about the PQ's allegation.

While Premier Jean Charest doesn't need to call an election until December 2013, some expect a vote to be called before the end of 2012.