Present Perfect

Article excerpt · target grammar marked

By 8 a.m., he has already processed data from six international gates, and the numbers have started to tell a story. Its statistics team has used that data to predict staffing needs, gate assignments, and food-court demand.

Grammar Reference · Present Perfect

Positive form

Subject + have/has + past participle. The team has developed a new model this year. Use for recent or ongoing relevance.

Negative and question

The forecast has not changed yet. Have you processed today's data? — auxiliary 'have' before subject in questions.

For vs Since

Haruto has worked there for six years / since 2018. For = duration. Since = the point it started.

Already / Just / Yet

She has just found a spike. I have already updated the model. They haven't finished yet.

01Exercise 1 — Form · Write the Correct Form

Present Perfect

1.The statistics team already ... the morning data before the meeting.

2. Haruto ... an unusual spike in the arrivals data today?

3.The airport ... historical records for over ten years.

4.The new airline route not ... in the forecast model yet.

5.The operations team just ... the staffing forecast for the holiday weekend.

6.How long the team ... this forecasting software?

02Exercise 2 — Find and Correct the Error

find the error · rewrite the sentence

1.Haruto has work at Haneda Airport since 2015.

2.The team have just find an unusual spike in the data.

3.How long they have kept these historical records?

4.Dubai International has handled 86 million passengers since three years.

5.I have updated the forecast model yesterday.

6.Have the influx numbers risen yet this morning? Yes, they risen.

7.The statistics software have already processed all of today's gate data.

8.She hasn't finished yet to write the quarterly forecast.

03Exercise 3 — About You

in your notebook

Personalise: complete five sentences about yourself using the target grammar.

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