Sorry but wasn't what I said or what you asked, you asked why do they HAVE to form a coalition, not why do they HAVE to form a coalition FOR A MAJORITY?
You can't move the goal post, they won the election and if Lib Dem weren't whoring/bribing/blackmailing themselves around Torys would have formed a minority government. Please show me where I talked about how effective they would be, or how they'd form a majority government.
I didn't, you said they DID not win the election and HAD to form a coalition.
Both of your statements are completely incorrect.
They both won the election and could form the government purely on the basis of having the most seats.
No, we've covered it at length, a minority government would have had a very hard time passing legislation, but not impossible(they didn't need a massive number of votes from right leaning Lib Dems, and other similar MP's to pass a few things) but that would STILL have been a government, a TOry government, and formed because they WON THE DAMN ELECTION.