(see related stories) Rome, April 27 - Italy's likely future premier Enrico Letta is expected to present President Giorgio Napolitano with a possible cabinet for the left-right government he is trying to form when he meets the head of State at 15:00 Italian time, parliamentary sources said. The sources said it is not yet clear when Letta of the centre-left Democratic Party (PD) will say whether he has shed his "reservation" about accepting a mandate to form a broad coalition government from the head of State. If Letta does take up the mandate, he will probably be sworn in as premier later on Saturday or on Sunday and his government will face confidence votes in parliament on Monday and Tuesday. Letta has had a series of talks with ex-premier Silvio Berlusconi's People of Freedom (PD) party and outgoing Prime Minister Mario Monti's Civic Choice party after being given the mandate to end two months of political deadlock from Napolitano on Wednesday. The 46-year-old, acting PD leader after the recent resignation of Pier Luigi Bersani over a double failure to get his candidates elected president amid internal party rifts, has said he wants to have a "slender" 18-strong ministerial team.