must have been someone else must have been something must have been stolen must have been surprised must have been taken must have been talking must have been terrible must have been terrified must have been terrifying must have been the wind must have been there must have been thinking must have been thrown must have been tired must have been tough must have been up must have been upset must have been used must have been using must have been very must have been very hard must have been waiting must have been watching must have been wearing must have been well must have been what must have been working must have been worried must have been written must have been wrong must have begun must have believed must have better must have big must have blacked must have blacked out must have blocked must have blood must have bought must have bought it must have broke must have broken must have built must have bumped must have called must have cast must have caught must have caused must have certain must have changed must have cheated must have checked must have children must have chosen must have clear must have closed must have come must have come home must have come up must have completed must have confidence must have confused must have contacts must have cost must have cost a fortune must have cost you must have courage must have crashed must have cried must have crossed must have cut must have decided must have demonstrated must have dialed must have died must have different must have done must have done it must have done some must have done something must have done something right must have done something wrong must have dozed must have dozed off must have drank must have dreamed must have dreamt must have drifted must have driven must have dropped must have dropped it must have drunk must have earned must have eaten must have eaten something must have either must have enjoyed must have enough must have equal