The present participle in -ošs is formed from intransitive verbs. They are formed from the stem of first person singular of the present tense by adding -ošs. For verbs of fourth group of first conjugation with infinitives -st, zt the participle is formed from unpalatalized second person singular. The participle is used as adjective and has the same declension rules as adjectives.
Reflexive participle of the -ošs is quite rare. This participle is defective into declension. The case endings for reflexive participle are given into followings table.
| Gender | Number | Nomin. | Gen. | Dat. | Acc. | Loc. |
| masc. | sing. | - | -ās | - | -os | - |
| masc. | plur. | -ies | -os | - | -os | - |
| fem. | sing. | - | -ās | - | -os | - |
| fem. | plur. | -ās | -os | - | -ās | - |
Indefinite declension
| Masc., sing. | Fem., sing. | Masc., plur. | Fem., plur. | |
| Nominative | ziedoš-s | ziedoš-a | ziedoš-i | ziedoš-as |
| Genitive | ziedoš-a | ziedoš-as | ziedoš-u | ziedoš-u |
| Dative | ziedoš-am | ziedoš-ai | ziedoš-iem | ziedoš-ām |
| Accusative | ziedoš-u | ziedoš-u | ziedoš-us | ziedoš-ās |
| Locative | ziedoš-ā | ziedoš-ā | ziedoš-os | ziedoš-ās |
Definite declension
| Masc., sing. | Fem., sing. | Masc., plur. | Fem., plur. | |
| Nominative | ziedoš-ais | ziedoš-ā | ziedoš-ie | ziedoš-ās |
| Genitive | ziedoš-ā | ziedoš-ās | ziedoš-o | ziedoš-o |
| Dative | ziedoš-ajam | ziedoš-ajai | ziedoš-ajiem | ziedoš-ajām |
| Accusative | ziedoš-o | ziedoš-o | ziedoš-os | ziedoš-ās |
| Locative | ziedoš-ājā | ziedoš-ajā | ziedoš-ajos | ziedoš-ajās |
Reflexive declension
| Gender | Number | Nomin. | Gen. | Dat. | Acc. | Loc. |
| masc. | sing. | - | mostoš-ās | - | mostoš-os | - |
| masc. | plur. | mostoš-ies | mostoš-os | - | mostoš-os | - |
| fem. | sing. | - | mostoš-ās | - | mostoš-os | - |
| fem. | plur. | mostoš-ās | mostoš-os | - | mostoš-ās | - |