When used with pronouns, the endings of some prepositions change, depending on the pronoun.
| First person singular me | -a i | First person plural us | -on ni |
| Second person singular you | -at ti | Second person plural or formal you | -och i |
| Third person singular masculine him | -o fe | Third person plural them | -yn nhw |
| Third person singular feminine her | -i hi |
Some common prepositions are:
| Ar on Root Arn– | At to/towards Root At– | ||
| Arna i | Arnon ni | Ata i | Aton ni |
| Arnat ti | Arnoch chi | Atat ti | Atoch chi |
| Arno fe | Arnyn nhw | Ato fe | Atyn nhw |
| Arni hi | Ati hi | ||
| O from Root Ohon– | Am for/at/about Root Amdan– | ||
| Ohono i | Ohonon ni | Amdana i | Amdanon ni |
| Ohonot ti | Ohonoch chi | Amdanat ti | Amdanoch chi |
| Ohono fe | Ohonyn nhw | Amdano fe | Amdanyn nhw |
| Ohoni hi | Amdani hi | ||
| Dan under Root Dan– | Heb without Root Hebdd– | ||
| Dana i | Danon ni | Hebddo i | Hebddon ni |
| Danat ti | Danoch chi | Hebddot ti | Hebddoch chi |
| Dano fe | Danyn nhw | Hebddo fe | Hebddyn nhw |
| Dani hi | Hebddi hi | ||
| Yn in Root Yn– | Drwy through Root Drwydd– | ||
| Yno i | Ynon ni | Drwyddo i | Drwyddon ni |
| Ynot ti | Ynoch chi | Drwyddot ti | Drwyddoch chi |
| Ynddo fe | Ynddyn nhw | Drwyddo fe | Drwyddyn nhw |
| Ynddi hi | Drwyddi hi | ||
| Rhag from Root Rhagdd– | Rhwng between Root Rhyng– | ||
| Rhagddo i | Rhagddon ni | Rhyngo i | Rhyngon ni |
| Rhagddot ti | Rhagddoch chi | Rhyngot ti | Rhyngoch chi |
| Rhagddo fe | Rhagddyn nhw | Rhyngddo fe | Rhyngddyn nhw |
| Rhagddi hi | Rhyngddi hi | ||
| Dros over Root Drost– | Gan by Root Gen–/Gan- | ||
| Drosto i | Droston ni | Gen i | Gennyn/gynnon ni |
| Drostot ti | Drostoch chi | Gen ti | Gennych/gynnoch chi |
| Drosto fe | Drostyn nhw | Ganddo fe | Ganddyn nhw |
| Drosti hi | Ganddi hi | ||
| Wrth by/near /to Root Wrth– | I to Root I– | ||
| Wrtho i | Wrthon ni | I fi/mi | I ni |
| Wrthot ti | Wrthoch chi | I ti | I chi |
| Wrtho fe | Wrthyn nhw | Iddo fe | Iddyn nhw |
| Wrthi hi | Iddi hi | ||
Yr Hen Ddyn Grwgnachlyd 