whether and when

USAGE SUMMARY

"whether and when" is correct and can be used in written English.
For example, "We have to decide whether and when to start this project."

✓ Grammatically correct

News & Media

Science

Formal & Business

Human-verified examples from authoritative sources

Exact Expressions

58 human-written examples

Whether and when this might happen, though, is uncertain.

The Economist

Asked repeatedly whether and when he would return to talks with Israel, he was oblique.

The New York Times

"Whether and when things will get back to normal we don't know," he said.

The New York Times

Whether and when a Senegalese woman can get an abortion is often a theological debate.

The New Yorker

Once consent is given, moreover, questions arise about whether and when it may be withdrawn.

The New York Times

And even, in Richard Deacon's case, whether and when to retire.

The Guardian - Arts

It affects people's decisions about whether and when to live together, stay together and have children.

The Guardian

But many unanswered questions exist about whether and when one can be developed.

The New York Times - Health

The court turned to the questions whether and when the secretary may ignore late manual recounts.

The New York Times

The union's executive will consider whether and when to call a strike.

The Guardian

Within the Israeli government, secret debates rage over whether, and when, Israel should strike Iran alone.

The Economist

Expert writing Tips

Best practice

When using "whether and when", ensure the sentence structure clearly indicates that both conditions are uncertain, not just the timing.

Common error

Avoid using "whether and when" when only the timing is uncertain; if the event is certain, use "when" alone. For example, instead of saying "We are unsure whether and when the meeting will start" when the meeting is confirmed, say "We are unsure when the meeting will start".

Linguistic Context

The phrase "whether and when" functions as a conjunctive phrase, typically introducing a clause that expresses uncertainty about both the occurrence and the timing of an event. Ludwig AI indicates that the phrase is grammatically correct and frequently used in English.

Expression frequency: Very common

Frequent in

News & Media

40%

Science

30%

Formal & Business

20%

Less common in

Academia

5%

Encyclopedias

3%

Wiki

2%

Ludwig's WRAP-UP

In summary, the phrase "whether and when" is a versatile and grammatically sound expression used to indicate uncertainty regarding both the occurrence and the timing of an event. As Ludwig AI confirms, it is a common phrase found across various authoritative sources such as The New York Times, The Economist, and The Guardian. Predominantly used in news, scientific, and business contexts, "whether and when" serves to introduce clauses of doubt or speculation. When using this phrase, ensure it accurately reflects genuine uncertainty about both conditions to avoid potential misinterpretations.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

the question of if and when

Adds "the question of" to explicitly frame it as an inquiry about both the condition and time.

the likelihood and timing

Emphasizes the probability of occurrence alongside the timing.

if and at what time

Replaces "whether" with "if" and "when" with "at what time", focusing on the conditional nature and specific timing.

should it occur, and when

Phrases the occurrence as a hypothetical and then asks about the timing.

the possibility and timing of

This alternative uses nouns to convey the uncertainty about both occurrence and timing.

if or at what point

Similar to the first alternative, but uses "at what point" to replace "when", emphasizing a specific moment in time.

at what time, if at all

Emphasizes the timing aspect and adds "if at all" to stress the possibility of non-occurrence.

the timing and potential for

Focuses on timing and uses "potential for" to express the uncertainty of the event happening.

assuming it happens, at what time

Similar to the previous alternative, emphasizing the assumption of the event happening.

the contingency and timing

Uses abstract nouns to capture the combined sense of uncertainty and temporal ambiguity.

FAQs

How do I use "whether and when" in a sentence?

Use "whether and when" to express uncertainty about both the occurrence and the timing of an event. For example, "The committee will decide "whether and when" to implement the new policy."

What is an alternative to "whether and when"?

Alternatives include "the question of if and when", "if and at what time", or phrases focusing on "the possibility and timing of" an event. The best alternative depends on the specific context and nuance you wish to convey.

Is it redundant to use "whether and when" together?

No, it is not redundant if you are unsure about both the occurrence and the timing. "Whether" addresses the possibility of something happening, while "when" addresses the timing, assuming it does happen. Using them together clarifies that both are uncertain.

Can I use "if and when" instead of "whether and when"?

"If and when" is a very similar phrase, but it presumes a higher likelihood of the event happening than ""whether and when"". "Whether" implies genuine uncertainty about the event's occurrence, while "if" often suggests it is more probable.