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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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I supposed to use

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "I supposed to use" is not correct in English.
Did you mean "I am supposed to use"? You can use the corrected phrase when indicating an expectation or obligation regarding what you should use in a particular context. Example: "I am supposed to use this software for my project, but I'm not sure how to get started."

⚠ May contain grammatical issues

Human-verified examples from authoritative sources

Exact Expressions

8 human-written examples

"How am I supposed to use this?

News & Media

The New York Times

She added: "Where am I supposed to use it?

What words am I supposed to use for what you've done to me, for what you're doing to me?

Am I supposed to use it on the bus — and get robbed?" John Morgan, 48, who was visiting New York from Rockville, Md., with his family last week, has already pledged his devotion to Steve Jobs & Company.

"And I said, 'What am I supposed to use?' " If you have ever played a pickup game with 12 players sharing 6 gloves, you might guess what his answer was.

Was I supposed to use the three-fingered salute today?" One executive said that while there had always been conservative critics, the current criticism could have a more volatile effect because of the fears and sentiments of a major part of the audience.

News & Media

The New York Times
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Human-verified similar examples from authoritative sources

Similar Expressions

52 human-written examples

In television adverts for  Horizon Zero Dawn, when player-controlled character Aloy says that the Earth has been reclaimed by nature, but for machines rather than ourselves, she's not entirely on the money or the shards, I suppose, to use the game's "post-post-apocalyptic" currency.

News & Media

Vice

In television adverts for Horizon Zero Dawn, when player-controlled character Aloy says that the Earth has been reclaimed by nature, but for machines rather than ourselves, she's not entirely on the money or the shards, I suppose, to use the game's "post-post-apocalyptic" currency.

News & Media

Vice

I would typically add more C4 to be safe, so if I was supposed to use one block, I'd use three.

News & Media

Vice

I wasn't trained for this, I didn't bargain for this, I don't even know whether I'm supposed to use the tape in the event of chemical, biological or radioactive warfare.

News & Media

The New York Times

"It was an anti-choice bill regarding abortion, which obviously involves a vagina, so, you know, I don't know what word I'm supposed to use otherwise".

News & Media

Huffington Post
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Expert writing Tips

Best practice

Always include the necessary auxiliary verb (am, is, are, was, were) before "supposed to" to ensure grammatical correctness. For example, use "I am supposed to use" instead of "I supposed to use".

Common error

Avoid omitting auxiliary verbs like "am", "is", or "was" before "supposed to". This omission leads to ungrammatical sentences that can confuse your readers. Always double-check your sentence structure to include these necessary verbs.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

60%

Authority and reliability

1.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "I supposed to use" is grammatically incorrect. It attempts to express obligation or expectation but fails due to the absence of a necessary auxiliary verb. Standard English requires a form of "be" (am, is, are, was, were) before "supposed" to properly convey this meaning.

Expression frequency: Missing

Frequent in

Science

0%

News & Media

0%

Formal & Business

0%

Less common in

Science

0%

News & Media

0%

Formal & Business

0%

Ludwig's WRAP-UP

The phrase "I supposed to use" is flagged as grammatically incorrect by Ludwig. The core issue is the omission of the auxiliary verb (am, is, was, were) before "supposed", which is essential for conveying obligation or expectation in standard English. Common correct alternatives include "I am supposed to use" (present obligation) and "I was supposed to use" (past obligation). This error should be avoided in all forms of writing, particularly in formal or professional contexts. Correcting it with an auxiliary verb makes it grammatically sound.

FAQs

How do I correct the phrase "I supposed to use"?

The phrase "I supposed to use" is grammatically incorrect. The correct form includes the auxiliary verb "am", "is", "was" or "were", depending on the context. For example, "I am supposed to use" indicates a present obligation, while "I was supposed to use" indicates a past obligation.

What's the difference between "I am supposed to use" and "I should use"?

"I am supposed to use" often implies an external obligation or instruction, whereas "I should use" suggests a personal recommendation or advice. The first indicates duty, the second suggests advisability.

What are some alternatives to "I am supposed to use"?

Depending on the context, you could use phrases like "I am meant to use", "I am required to use", or "I have to use". These alternatives maintain a similar meaning while varying in formality and emphasis.

Is "I supposed to use" ever correct?

No, "I supposed to use" is not grammatically correct in standard English. It always requires an auxiliary verb such as "am", "was", or "were" to form a complete and correct sentence. The omission of the auxiliary verb renders the phrase incorrect.

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Most frequent sentences: