The verbal nature of Participle I reveals itself both at the morphological and syntactic levels.
Morphologically, the verbal nature of Participle I manifests itself in the grammatical categories of phase and voice. The category of phase in Participle I finds its expression in the opposition of non-perfect and perfect forms. Perfect Participle I indicates that the action denoted by Participle I is prior to that denoted by the finite verb, e.g.:
Having completed the job, the men left early
Syntactically, the verbal nature of Participle I manifests itself in the following features.
1. Its right-hand combinability with objects, adverbials, and predicatives when the participle happens to be a copula. Cf: Having finished the dress, Mary packed it carefully in a box - object.
Having recovered completely, Ted left the hospital - adverbial.
All being well, we should arrive by - predicative.
2. Its left-hand combinability with a subjectival member indicating the doer of the action denoted by Participle I, e.g.:
Can you see the girl dancing with your brother?
3. The function of realizing the verbal component of primary predication when Participle I makes part of a simple verbal or compound nominal predicate. Cf.:
She is reading a newspaper
It is very distressing to me, sir, to give this information
4. The function of realizing the verbal component of secondary predication when Participle I makes part of a complex member of the sentence or forms a parenthesis. Cf.: