Church Slavonic Participles
Participles are verb forms that act as adjectives or adverbs. For example, in "running water", the word "running" is a verb form being used to describe the noun, "water". In the sentence, "The women came to the tomb, carrying myrrh," the phrase "carrying myrrh" acts as an adverb that describes how the women came to the tomb.
Church Slavonic often uses participles to indicate a relative clause. For example, "[Let us] who mystically represent the cherubim ..." is literally "[Let us] the mystically-representing-the-cherubim [ones] ..."
Present Active Participles
How are passive participles formed?