Perfect tense

Standard Competency :
To comprehend and express the meanings of short functional and simple monolog essay texts in the form of Perfect Tense in the daily life context to access knowledge
Basic Competency :
To respond and express the meaning nuance and the rhetorical steps within the short functional and simple monolog essay texts in the form of perfect tense (present perfect, past perfect and future perfect tense)accurately and fluently in the daily life context to access knowledge
Present perfect is formed by combining have/has with the main verb’s past participle form:
I have arrived.
A negation is produced by inserting not after have/has:
I have not arrived.
Questions in present perfect are formulated by starting a sentence with have/has:
Has she arrived?
(+) We had eaten before they came
(-) They had not eaten before we came
(?) Had they eaten before we came?