Butwhenwe'rein a natural, relaxed, casualconversation, informalconversationwithmaybe a friendor a familymemberthatsometimes I thinkit's okaytorelaxthosetwowords.
Because I guaranteeyou, ifyoucametoEnglandandyouspoketo a nativespeaker, it's quitelikelythatyouwouldhearoninformalcontractioninconversationbecausesomepeople, like I said, theydousethem a lot, soit's goodtoknowthemonifyouwanttousethem.
ThisoneisconsideredtobeusedmawrbypeoplefromparticularareasoftheUKnotbadareas, butit's alsoconsideredtobeusedbythosewhoaremaybenotsowelleducated, so I don't particularlyrecommendit.