Siarad, stammers5: 'hyn'

210	RHO	ti (dd)im (we)di gwneud dim_byd mor ambitiousE â hyn o_blaen naddo ?
		PRON.2S NEG PRT.PAST do.NONFIN nothing so ambitious with this before no
		you.PRON.2S nothing.N.M.SG+SM.[or].not.ADV+SM after.PREP make.V.INFIN nothing.ADV as.ADJ ambitious.ADJ as.CONJ this.PRON.DEM.SP before.ADV no.ADV.PAST
		you haven't done anything as ambitious as this before, have you?
411	RHO	&=laugh (dy)dy o (ddi)m ots bod hyn (we)di digwydd tua pum mlynedd yn_ôl .
		be.3S.PRES.NEG PRON.3SM NEG odds be.NONFIN this PRT.PAST happen.NONFIN about five years back
		be.V.3S.PRES.NEG he.PRON.M.3S not.ADV+SM problem.N.M.SG be.V.INFIN this.PRON.DEM.SP after.PREP happen.V.INFIN towards.PREP five.NUM years.N.F.PL+NM back.ADV
		never mind that this happened about 5 years ago.
416	RHO	soCE # anywayE oedd [/] oedd hyn yn &d rhan fawr o (y)r storyCE .
		so anyway be.3S.IMP be.3S.IMP this PRT part big of DET story
		so.ADV anyway.ADV be.V.3S.IMPERF be.V.3S.IMPERF this.PRON.DEM.SP PRT.[or].in.PREP part.N.F.SG big.ADJ+SM of.PREP the.DET.DEF story.N.SG
		so, anyway, this was a major part of the story.
430	RHO	dw (ddi)m yn gwybod os (y)dy hyn <yn wir> [?] neu beidio de .
		be.1S.PRES NEG PRT know.NONFIN if be.3S.PRES this PRT true or desist.NONFIN TAG
		be.V.1S.PRES not.ADV+SM PRT know.V.INFIN if.CONJ be.V.3S.PRES this.PRON.DEM.SP PRT true.ADJ+SM or.CONJ stop.V.INFIN+SM be.IM+SM
		I'm not sure whether this is true or not, right.