A participle is a word with a verb form, but functions either as an adjective or a noun. The participle in the given sentence is the word "lying" and the word it modifies is the noun "cow". In this sentence, the participle "lying" functions as an adjective to describe the noun "cow".
The participle is Lying and the word modified is Cow.
Explanation:
A participle can have two possible endings which are ed (past participle) ing (present participle), Lying is a present participle, this words are used as adjectives to the word that they are modifying, if the modified word is Cow, lying descrives how the cow was going through the moment in which the sentence is set.
