Vous avez cherché: decided that it would be best (Anglais - Gallois)

it would be
byddwn yn

that would be good
byddai hynny'n dda

it would be nice --
byddai'n braf --

that would be inappropriate
byddai hynny'n amhriodol

it would be useful --
byddai'n ddefnyddiol --

we were determined that it would be consensual
yr oeddem yn benderfynol y byddai'n gydsyniol

he therefore thought that it would be unacceptable
gan hynny , yr oedd yn credu na fyddai'n dderbyniol

apart from that , it would be fairly simple
ar wahân i hynny , byddai'n weddol syml

i think that it would be the easy answer to this
credaf mai hynny fyddai'r ateb syml i hyn

however , i did not know that it would be that close
fodd bynnag , ni wyddwn y byddai mor agos â hynny

i am sure that it would be warmly welcomed in monmouthshire
yr wyf yn siwr y câi groeso cynnes yn sir fynwy

it was said that it would be £2 .9 million annually
dywedwyd y byddai'n costio £2 .9 miliwn bob blwyddyn

if the number were any greater than that , it would be impractical
pe bai'r nifer yn fwy na hynny , byddai'n anymarferol

it would be a model of the best practices in industrial relations
byddai'n fodel ar gyfer yr arferion gorau mewn cysylltiadau diwydiannol

david melding : i deny that it would be a two-tier system
david melding : gwadaf y byddai'n system ddwy haen

i think we all accept that would be best practice within the assembly
credaf y byddai pawb ohonom yn derbyn mai dyna fyddai'r ymarfer gorau yn y cynulliad

it was decided that the following steps be taken:
pennwyd y camau dilynol:

that would amount to force-feeding children and it would be wrong
byddai hynny'n gyfystyr â gorfodi plant i fwyta a byddai'n anghywir

that would be wrong , as it would compromise the vision
byddai hynny'n anghywir , gan y byddai'n cyfaddawdu'r weledigaeth

i therefore decided that it would be more sensible to concentrate funds and resources where they would achieve the best value in monetary and environmental terms
felly penderfynais y byddai'n fwy synhwyrol canolbwyntio arian ac adnoddau lle y byddent yn sicrhau'r gwerth gorau o ran arian a'r amgylchedd