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were introduced vs have been introduced

Both "were introduced" and "have been introduced" are correct, but they are different in tense. "Were introduced" is used to talk about a specific time in the past when something was introduced, while "have been introduced" is used to talk about a more recent introduction that has an impact on the present.

Explained by Vince
Editor at TextRanch

Last updated: September 13, 2024 • 15215 views

were introduced

This phrase is correct and commonly used to refer to a specific time in the past when something was introduced.

Use "were introduced" when talking about a specific time in the past when something was introduced. It indicates that the introduction happened at a particular point in time.

Examples:

The new product line was introduced last year.
The concept of recycling was introduced in the 1970s.

Show examples from the web [+]
Last updated: November 06, 2024

Oct 16, 2023 ... Why functional component/hooks were introduced in reactjs if class components was working fine. Discussion. This question was asked in my ...
Aug 23, 2010 ... I have seen some generic classes that make your head hurt and your eyes bleed. So what are all the reasons generics were introduced (mainly for ...
Dec 21, 2021 ... These carryover bills were introduced during the 2021 state legislative sessions but did not reach final resolution this year. Twenty-five ...
How can I know WHICH NAs were introduced by coercion? Ask Question. Asked 5 years, 1 month ago. Modified 1 year, 2 months ago. Viewed 956 times.
National anti-trans bills. We're tracking 80 national bills in the United States in 2024. In 2023, an unprecedented 53 bills were introduced ...
Nov 15, 2022 ... A new Yale study co-authored by SOM's Paul Goldsmith-Pinkham found that once vaccines were introduced, the rate of excess deaths among ...
Iowa's first ring-necks were introduced accidentally when a severe windstorm wrecked the pens of game breeder William Benton of Cedar Falls releasing.
May 27, 2024 ... Here is the moment we were introduced to Brad, an amateur pianist from Liverpool who grew up in foster care. It was one of many moving and ...
Sep 16, 2020 ... Ancient DNA shows domestic horses were introduced in the southern Caucasus and Anatolia during the Bronze Age · Abstract · INTRODUCTION · RESULTS.
Jun 9, 2012 ... Penguins survived in the arctic for almost 18 years after they were introduced by the Norwegian royalty (introduced in 1936 -- last penguin ...

Alternatives:

was introduced
had been introduced
got introduced
was launched
was unveiled

have been introduced

This phrase is correct and commonly used to refer to a more recent introduction that has an impact on the present.

Use "have been introduced" when talking about something that was introduced recently and still has relevance or impact on the present. It indicates a connection between the past introduction and the current situation.

Examples:

New safety measures have been introduced in the workplace.
Several new policies have been introduced to improve customer service.

Show examples from the web [+]
Last updated: November 06, 2024

May 29, 2023 ... How Super Saiyan Blue should have been introduced. Theory. Ssjb was introduced in resurrection F, but it wasn't a good introduction. They ...
Feb 28, 2023 ... 42 copycat bills limiting sexual orientation and gender identity education bills have been 22 states have been introduced since 2021, according ...
Dec 15, 2022 ... She should have been introduced in season 6 or 7. Have them develop her character, give her side storylines like her hustling through her career or getting ...
Which genes have been introduced into gm crops so far and why? · Herbicide tolerance. The first GM characteristic to be widely adopted was resistance to a ...
Feb 20, 2021 ... (Spoilers extended) Should Young Griff have been introduced in A Feast for crows ... I think that AFFC's main theme is death.Characters react to ...
May 8, 2024 ... ... have been introduced in Congress. While the various versions of the bill have contained some key differences, they all would have provided a ...
Jun 28, 2024 ... The latest arc Tooru should have been introduced in, should have been during Milagro Man. The fact he isn't introduced until Poor fucking Tom, ...
Jul 29, 2023 ... A flurry of new federal bills have been introduced to try to create uniformity in the marketplace for athlete's monetization of their name, image and likeness.
Oct 19, 2022 ... Where could Doom 2 enemies have been introduced in Doom 1? By SPG, October 19, 2022 in Doom General Discussion. Recommended Posts. SPG · SPG.
May 23, 2023 ... anti-LGBTQ+ bills have been introduced in state legislatures, a record;. Over 220 bills specifically target transgender and non-binary people ...

Alternatives:

have been implemented
have been put in place
have been established
have been enforced
have been enacted

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