If every vote from separatist parties is needed for the continuum of the government, how long would it last?
Also, could the political right win an absolute majority in the foreseeable future?
If we are pedantic, CC and BNG, both with a single seat each, can be dropped. That being said, BNG won't ask for much (basically more money for Galicia) and CC's support really seems a last ditch effort to keep the money tap flowing but they have no leverage over Sanchez
Realistically it's going to come down to Puigdemont. And the next Catalan election will have a lot to do with how the Spanish government evolves