PRESENT PERFECT

The present perfect is a grammatical combination of the present tense and the perfect aspect, used to express a past event that has present consequences. An example is "I have eaten" (so I'm not hungry). Depending on the specific language, the events described by present perfects are not necessarily completed, as in "I have been eating" or "I have lived here for five years."
The present perfect is a compound tense in English, as in many other languages, meaning that it is formed by combining an auxiliary verb with the main verb. For example, in modern English, it is formed by combining a present-tense form of the auxiliary verb "to have" with the past participle of the main verb. In the above example, "have" is the auxiliary verb, whereas the past participle "eaten" is the main verb. The two verbs are sometimes labeled "V1" and "V2" in grammar instruction.
Rumusnya Present Perfect Tense begini:
Positif: S + have/has + V3
Negatif: S + have/sas Not + V3
Tanya: Have/has + S + V3
FORM
[has/have + past participle]
Examples:
• You have seen that movie many times.
• Have you seen that movie many times?
• You have not seen that movie many times.
Nah, setelah Subject (S) maka pakai “have” atau “has” sesuai pasangannya. Have dalam konteks ini artinya adalah: sudah, telah, barusan. Yang aneh dalam bahasa inggris Have + ES bukan Haves tetapi HAS. Jadi pasangannya begini:
He, She, It, John, Merry, Mufli : Has
You, We, They, Ellen and Budi: Have
Contoh Present Perfect Tense
Positif: She has gone (Dia baru saja pergi)
Negatif: She has not gone
Tanya: Has She gone?
Ingat, bukan She has go, bukan pula She has going, tidak pula She has goes. “Go” itu adalah kata kerja yang bentuk ketiganya adalah “gone”. Urutan perubahan bentuk kata kerja untuk Go adalah: Go-went-gone.
Contoh lainnya:
-I have written english lesson for 30 minutes
-You have read my lesson since 2 PM
Perhatikan perubahan kata kerja:
Write – wrote – written (berubah)
Read – read – read (lah kok sama? haha..)
Saya ulangi
-I have written english lesson for 30 minutes.
Artinya:
Saya telah menulis pelajaran bahasa inggris selama 30 menit.
Dalam kalimat diatas, ditekankan “telah” nya itu dan sekarang sudah beres, sudah tidak lagi menulis. Tetapi jika penekanan Anda pada “30 menit yang lalunya” maka Anda gunakan Past Tense yang lebih cocok.
Contoh lainnya lagi, kalimat positif:
-I have cleaned the floor
-He has drunk milk
-You have just broken the glass
Gimana kalimat negatifnya? He has not drunk milk! Anda coba yang dua lagi ya.
Kalimat Tanya dalam Present Perfect Tense ya tinggal dibalik mawon sesuai rumus diatas tadi. Ingat jangan lupa pasangannya untuk “Have” dan “Has”.
-Has She drunk milk?