Negotiations on forming a new Greek government is set to resume on Tuesday after three previous failed attempts.<br /><br />The radical left block (Syriza) has refused to join any coalition which supports austerity in exchange for bailout packages.<br /><br />The mainstream socialists have attacked the Left for their intransigence.<br /><br />If the parties can't agree on a coalition there will have to be another election next month.<br /><br />But if Greeks elect a parliament that is opposed to austerity policies it may lead to Greece's exit from the eurozone.<br /><br />Al Jazeera's Tim Friend reports from Athens.