need to be alert

USAGE SUMMARY

"need to be alert" is correct and usable in written English.
You can use this phrase any time you want to express the need to be vigilant or attentive. For example: We need to be alert when engaging in conversations online, as we can never be sure who we are talking to.

✓ Grammatically correct

News & Media

Science

Formal & Business

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

I need to be alert during meetings, but I can't be achieving that alertness the way I used to and I don't like the taste of coffee.

Vice

Passengers need to be alert.

The New York Times

As a population we need to be alert to this".

The Guardian

As a population we need to be alert to this," Mr Donald said.

Independent

That's important in the morning when we need to be alert and awake.

Independent

Kelvin says teachers need to be alert, but do not need to become psychiatrists to help.

The Guardian

"I don't have the impression that it's out of control yet, but it's something we need to be alert to".

The New York Times

You need to be alert and focused when you are in the field, and you must check the ground slowly".

The Guardian

But just because you can learn about a person doesn't mean you will; you need to be alert.

The Guardian - Tech

"This gives us hope that we can move forward," he said, "but we still need to be alert".

The New York Times

"I see patients six hours a day during weekdays, and I need to be alert to what they say".

The New York Times

Expert writing Tips

Best practice

In safety instructions, follow "need to be alert" with specific actions to take when a potential hazard is identified.

Common error

Avoid using "need to be alert" without specifying what one should be alert to. Vague statements like "We need to be alert" lack impact. Instead, clarify the subject of alertness: "We need to be alert to changes in market trends."

Linguistic Context

The phrase "need to be alert" functions as an infinitive phrase expressing necessity or requirement. It is commonly used to emphasize the importance of vigilance and readiness in various situations. Ludwig provides numerous examples illustrating its practical application.

Expression frequency: Very common

Frequent in

News & Media

40%

Science

35%

Formal & Business

10%

Less common in

Wiki

8%

Academia

5%

Reference

2%

Ludwig's WRAP-UP

In summary, the phrase "need to be alert" is a grammatically sound and commonly used expression that conveys the necessity of vigilance and readiness. As confirmed by Ludwig AI, it is suitable for diverse contexts, particularly in news, scientific, and professional domains. While generally neutral in register, it's important to clearly specify the subject of alertness and avoid overuse in vague or trivial situations. Related phrases like "must remain vigilant" and "should stay attentive" can provide alternative ways to express similar meanings. Ludwig's examples demonstrate its wide applicability and practical usage.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

must remain vigilant

Emphasizes continuous watchfulness; stronger emphasis on potential danger.

should stay attentive

Highlights focus and careful observation; less about potential threats.

have to be watchful

Implies observation over a duration; similar to being alert but more proactive.

it's vital to be aware

Stresses the importance of knowledge or perception.

it's important to pay attention

Stresses the significance of focusing on something specific.

it's crucial to stay informed

Highlights knowledge acquisition and being up-to-date; related to alertness but emphasizes information.

it's necessary to exercise caution

Focuses on prudence and preventative action, suggesting awareness of risks.

it's essential to keep an eye on

Emphasizes direct oversight of something or someone.

be prepared to react

Focuses on readiness and the ability to respond quickly.

be ready for anything

Highlights general preparedness and anticipation of unforeseen events.

FAQs

How can I rephrase "need to be alert" for a formal tone?

In formal contexts, you can use phrases like "must remain vigilant", "should stay attentive", or "it is crucial to stay informed" for similar meanings, but with a more professional tone.

What's the difference between "need to be alert" and "need to be aware"?

"Need to be alert" implies a state of readiness and quick response, while "need to be aware" focuses on having knowledge or perception of something. The former is about vigilance, the latter about understanding.

When is it appropriate to use "need to be alert"?

Use "need to be alert" when emphasizing the importance of vigilance and readiness to respond to potential dangers, changes, or important information. This phrase is suitable for safety instructions, professional guidelines, and general advice.

Are there any situations where "need to be alert" might be too strong a phrase?

While generally acceptable, "need to be alert" can sound alarmist if used in casual conversation or for trivial situations. Consider using milder alternatives like "pay attention" or "stay attentive" in less critical contexts.