PRESENT PERFECT

A.

(+) They have waited their parents at school for 3 hours.

(-) They haven't waited their parents at school for 3 hours.

(?) Havetheywaited their parents at school for 3 hours?

B.

~ (+) I have phoned my mother for an hour.

~ (+) Mr. George has lived in America for years.

~ (+) The boys have swum in the river since at ten o'clock.

~ (+) I have waited for my friend in the school canteen since the bell rang.

EXPLANATION

Present perfect tense digunakan dalam menjabarkan kegiatan yang telah berlangsung di masa lampau tetapi masih terkait atau menuai dampak sampai saat ini.

Penanda kata yang sering digunakan di antaranya : since, for, already, yet, ever, just.

"Since" digunakan untuk menyatakan waktu tertentu, semenjak kapan kejadian tersebut berlangsung.

"For" digunakan untuk menyatakan durasi lamanya kejadian tersebut berlangsung dari terhitung awal kejadian hingga waktu detik ini.

Polanya :

(+) S+has/have+Verb3+O/C

(-) S+has/have+not+Verb3+O/C

(?) Has/have+S+Verb3+O/C

Contoh :

(+) She has lived in France since 1990.

Dia telah menetap di Perancis sejak 1990

(-) She hasn't lived in France since 1990

Dia tidak menetap di Perancis sejak 1990

(?) Hasshelived in France since 1990

Telahkan dia menetap di Perancis sjk 1990?

Note!

~ Gunakan aux. "has" untuk subyek "She, he, it, dan nama orang."

~ Gunakan aux. "have" untuk subyek "they, I, we, you, dan kata benda jamak."

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Learn more about

Present perfect

yomemimo.com/tugas/37481395

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Details

Grade : X

Subject : English

Category : sentence structure

Code : 10.5.10

Keywords : perfect, create a sentence