| Mae gen i annwyd trwm. | I have a heavy cold. |
| Mae gen i wres uchel. | I have a high temperature. |
| Mae gen i beswch cas. | I have a nasty cough. |
| Gen i | Mae gen i beswch. | I have a cough. |
| Gen ti | Mae gen ti annwyd. | You have a cough. |
| Gynno fo | Mae'r ddannodd gynno fo. | He has toothache. |
| Gynni hi | Mae gynni hi wres uchel. | She has a temperature. |
| Gynnon ni | Mae gynnon ni annwyd. | We have a cold. |
| Gynnoch chi | Mae gynnoch chi beswch. | You (pl./formal) have a cough. |
| Gynnyn nhw | Mae'r ddannodd gynnyn nhw. | They have toothache. |