An adverbial participle is a special form of the verb used to turn a verb into an adverb, you describe another action with it:
There are two types of adverbial participles in Russian:
English generally doesn't have these expressions as a one-word form. In Russian participles and adverbial participles are mostly used in books and when using a more formal style. However, there are a few popular adverbial participles that get used in speech sometimes.
Not every verb has a participle. Still, here are the rules.
Imperfective adverbial participles are formed by adding the suffix -я (or а) to the present stem:
Perfective adverbial participles are formed by adding one of the suffixes -в, or -вши(obligatory for reflective verbs), -ши (for stems ending in a consonant) to the infinitive stem:
If the stem ends in т or д, -я is used instead:
Adverbial participles behave like adverbs, i.e. they only have one form.
Some of these words have crystallized into popular expressions: