| Sg. Indef. | flaski |
| Sg. Def. | flaskinn |
| Pl. Indef. | flaskar |
| Pl. Def. | flaskarnir |
| Sg. Indef. | flaska |
| Sg. Def. | flaskans |
| Pl. Indef. | flaska |
| Pl. Def. | flaskanna |
| Sg. Indef. | flaska |
| Sg. Def. | flaskanum |
| Pl. Indef. | flöskum |
| Pl. Def. | flöskunum |
| Sg. Indef. | flaska |
| Sg. Def. | flaskann |
| Pl. Indef. | flaska |
| Pl. Def. | flaskana |