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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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has started yesterday

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "has started yesterday" is not correct in standard written English.
It is incorrect because the present perfect tense ("has started") should not be used with a specific past time reference ("yesterday"). Example: "The project has started, but I can't remember when exactly."

⚠ May contain grammatical issues

Human-verified similar examples from authoritative sources

Similar Expressions

57 human-written examples

Playing for pride has started early.

He has started this year extremely well.

It has apologised and says the work has started this week.

The hotly tipped young MC Novelist, meanwhile, has started 2016 with an overtly political approach.

His mind was calm, and he remembers thinking: "What I want has started today".

News & Media

The Guardian

Granderson has started 1,043 games in the outfield, but only three in left, and none since 2007.

Following an important upgrade of the spallation target and of the experimental area, a new measurement campaign has started last year.

A project aiming at setting up a flight simulator for the development of advanced controllers has started last year at CEA.

Scotland's economy has started 2013 in "growth mode" and is avoiding a triple-dip recession, a report has suggested.

News & Media

BBC

Recruitment of patients in Jeroen Bosch Hospital has started since January 2010 and in Slotervaart Hospital since July 2011.

Inclusion of patients has started October 01, 2012 and the expectation is to include 10 patients per month.

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Expert writing Tips

Best practice

Use the simple past tense ("started") when referring to a specific time in the past. For example, say "The meeting started yesterday" instead of "has started yesterday".

Common error

Avoid combining the present perfect tense (which indicates an action completed at an unspecified time in the past) with specific past time adverbs (like "yesterday"). This creates a grammatically incorrect sentence.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

60%

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Real-world application tested

Linguistic Context

The phrase "has started yesterday" is grammatically incorrect because it inappropriately combines the present perfect tense with a specific past time adverb. The present perfect tense is used for actions completed at an unspecified time, contrasting with the simple past for actions at a defined time. Ludwig AI indicates that this phrase is not correct in standard written English.

Expression frequency: Missing

Frequent in

Science

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News & Media

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Formal & Business

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Less common in

Science

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Formal & Business

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Ludwig's WRAP-UP

The phrase "has started yesterday" is grammatically incorrect due to the misuse of the present perfect tense with a specific past time adverb. As Ludwig AI confirms, this combination is not standard English. Instead, the simple past tense should be used (e.g., "started yesterday"). The goal is to convey an action that began on the previous day, but incorrect grammar hinders effective communication. To ensure clarity and correctness, it's best to avoid combining the present perfect with adverbs like "yesterday" and instead use the simple past. Correct alternatives include phrases such as "started yesterday" or "began yesterday".

FAQs

Why is "has started yesterday" grammatically incorrect?

The present perfect tense ("has started") is used for actions that happened at an unspecified time in the past or have relevance to the present. "Yesterday" specifies a definite time in the past, so the simple past tense (e.g., "started yesterday") is required.

What's the correct tense to use when describing something that began on a specific date in the past?

Use the simple past tense. For example, instead of "The project has started on Monday", say "The project "started on Monday"".

What are some alternative ways to say something "has started"?

Depending on the context, you could use phrases like "began", "commenced", or "was initiated". If you want to show a connection to the present, you can use the present perfect with different wording, such as "the process has begun".

Can I use the present perfect tense with adverbs of time?

You can use the present perfect with adverbs like "already", "yet", "ever", and "never", which don't specify a definite time. However, avoid using it with adverbs that indicate a specific time in the past, like "yesterday", "last week", or "in 2020".

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