Answer:
Phrase which are participial phrase
being blind (Present Participle)
having been long enclosed (Past Participle)
Step-by-step explanation:
'Participle' is a word formed from a 'verb'. Participle phrase is a group of words which has participle along with modifiers and nouns/pronouns. Participle phrase in the given excerpt are:
being blind (Present Participle)
having been long enclosed (Past Participle)
Present participle has verb form with '-ing'. Past Participle has 'ed', '-d','-t'.
Be is a verb which a present participle. Enclose is a verb which is suffixed by 'd' and a past participle is formed.