There must have been a misunderstanding

Rhaid bod camddealltwriaeth wedi bod

It must have been Cynog who slipped in at the end

Rhaid mai Cynog a ddaeth i mewn ar y diwedd

It must have been something that we were up to last week

Rhaid bod gan hyn rywbeth i'w wneud â'r hyn yr oeddem yn ei wneud yr wythnos diwethaf

Andrew Davies : It must have been the translation , Elin

Andrew Davies : Rhaid mai'r cyfieithiad oedd yn gyfrifol am hynny , Elin

that must have been Alun , or possibly not --

rhaid mai Alun oedd hwnnw , neu efallai ddim --

We must recognise that there have been improvements

Rhaid inni gydnabod bod gwelliannau wedi bod

I must address some points that have been raised

Rhaid imi ymdrin â rhai o'r pwyntiau a godwyd

Deciding where to begin must have been a problem

Yr oedd penderfynu ble i ddechrau siwr o fod yn broblem

They must not be ignored as they have been in the past

Rhaid peidio â'u hanwybyddu fel y'u hanwybyddwyd yn y gorffennol

The cancellation costs at that time must have been very high

Rhaid bod y costau diddymu bryd hynny'n uchel iawn

These points must have been put to you time and again

Rhaid bod y pwyntiau hyn wedi'u codi gyda chi dro ar ôl tro

We must consider the out-of-Wales options that have been recommended

Rhaid inni ystyried y dewisiadau y tu allan i Gymru sydd wedi'u hargymell

We must then ask why those parts have not been devolved

Rhaid gofyn wedyn pam nad yw'r rhannau hynny wedi eu datganoli

We must accept that the negotiations have been badly held up

Rhaid inni dderbyn bod y negodiadau wedi'u dal yn ôl yn hir

We must consider how the powers have been transferred to us

Rhaid inni ystyried sut mae'r pwerau wedi eu trosglwyddo inni

The interview with John Prescott was held over lunch , and it must have been a good lunch

Cynhaliwyd y cyfweliad gyda John Prescott dros ginio , a rhaid ei fod yn ginio da

We must listen to some of the things that have already been said

Rhaid inni wrando ar rai o'r pethau a ddywedwyd

David Davies : That must have been the total party membership

David Davies : Rhaid mai hynny oedd holl aelodaeth y blaid

That must have been the fastest speech in the history of the Assembly

Y mae'n rhaid mai honno oedd yr araith gyflymaf yn hanes y Cynulliad

Val Feld : I apologise Pauline , I must have been out of the Chamber

Val Feld : Ymddiheuraf Pauline , mae'n rhaid fy mod allan o'r Siambr ar y pryd