pp(a verb form)
[DOC] [TLE] Past Participle - The -ed Verb - Grammar.com [PAR] Every verb also has a past-participial form, which, for most verbs, you create by 
adding ed, d, or t. As with present participles, you'll sometimes have to double... [DOC] [TLE] English Grammar | LearnEnglish | British Council | Verbs [PAR] Verbs in English have four basic parts: ... Base form, -ing form, Past tense, Past 
participle ...