Present perfect
present perfect simple
Past simple
Cleft sentences
Verb tense
Past perfect
Adverb
the appropriate form of the auxiliary verb to have (present tense), plus the past participle of the main verb.
a complex sentence that emphasizes an element by rearranging the normal word order of a simple sentence
Subject + Verb in the past form (base form of the verb + ed/d for regular verbs or past tense form of the irregular verbs)
the form of a verb indicating when an action takes place or when a condition exists.
Subject + have/has + past participle + the rest of the sentence
subject + "had" + the past participle
a word or phrase that modifies or qualifies an adjective, verb, or other adverb or a word group,