decide whether vs decide on whether

Both "decide whether" and "decide on whether" are correct and commonly used in English. They can be used interchangeably depending on personal preference or the context of the sentence.

Last updated: April 06, 2024 • 523 views

This phrase is correct and commonly used in English.

"decide whether"

This phrase is used to indicate making a decision about something without any additional preposition.

Examples:

I need to decide whether to go to the party or stay home.
She couldn't decide whether to accept the job offer.
Have you decided whether you will come with us?
Let me know if you have decided whether to buy the new car.
They need to decide whether to renovate the house or move.

Show examples from the web [+]

I cannot decide whether that makes you trustworthy...
I'll let you decide whether I do the script or not.
I thought this was just an interview to decide whether you were suitable for the position.
I will decide whether or not to forgive you.
This can decide whether you stay just a gravure model or become an actress.
Those men decide whether to fund the plane, so I need them happy.
You decide whether you'll sing for them or not.
Allow the select board to decide whether a trial is warranted.
You just need to decide whether you care more about money or your girlfriend.
Still can't decide whether I'm doing trance or techno.
After that you can decide whether or not you want to help me.
You'd better decide whether you do.
We will decide whether the MicroCon sale goes through.
And we can decide whether magnetic fields are important for habitability or not.
I should decide whether or not to get married now.
I decide whether we stay or not.
That's for the king to decide whether he will recognize the child.
I still can't decide whether I should.
I'm here to decide whether this transactional relationship transformed into something more.
Maybe you'll even decide whether or not you care to return.

Alternatives:

determine whether
choose whether
make a decision about whether

This phrase is correct and commonly used in English.

"decide on whether"

This phrase is also used to indicate making a decision about something, but with the additional preposition 'on'.

Examples:

We need to decide on whether to invest in the new project.
The committee will decide on whether to proceed with the plan.
Have you decided on whether to take the job offer?
Let's decide on whether to go on vacation this summer.
They are still deciding on whether to buy a new house.

Show examples from the web [+]

It essentially states that a Member State will be free to decide on whether or not to regulate in this field.
But it is welcome that the Supreme Court has now said it would decide on whether the US courts have jurisdiction.
It is welcome that the Supreme Court has now said it will decide on whether US courts have jurisdiction (though not, itself, on legality of detention).
I guess you got to decide on whether or not you believe I'm your friend.
Now, I hope you can use this time to decide on whether or not you wish to remain a monk.
On the basis of this advice, the joint committee will decide on whether there is scope for a continuation of pelagic fisheries under the protocol.
This policy position remains fully valid since the international use of currencies should be the outcome of a market-driven process in which foreign economic agents decide on whether a currency is an attractive store of value.
Member States should not be required, at this early stage of the criminal proceedings, to decide on whether the victim concerned fulfils the conditions for reimbursement of expenses.
When a button is pressed, cameras nearby allow operators to look at the source of the issue and decide on whether to deploy an officer immediately.
You think you get to decide on whether or not I hire you?
The Contradas have met and so has the City Council of Siena in special meetings to decide on whether or not to hold a special edition of the Palio this year.
Not least, we need to decide on whether our priority is to make Union declarations so that the world knows where we stand, or to see our texts in fact adopted by a majority of members of the Commission.
High school in Romania Before enrolling in high school, students have to decide on whether to pursue a theoretical education in a general high-school, or a professional secondary education, in a vocational high-school.
The hearing officer shall decide on whether an extension of the time limit should be granted, taking account of the length and complexity of the request for information and the requirements of the investigation.
A court in the executing Member State shall decide on whether the European arrest warrant shall be executed after a hearing, held in accordance with the national rules of criminal procedure, which must afford legal safeguards to the defendant:
I believe it is up to the Maltese themselves to decide on whether or not they want to join.
It is proposed however that it would be a matter for Member States to decide on whether to adopt a vaccination or stamping out approach on the basis of risk analysis.
The Commission, which will have to decide on whether or not to act on a proposal, must not be the body that decides on its admissibility, in my view.
The Commission shall assess the amendments proposed and decide on whether to approve them.

Alternatives:

make a decision on whether
come to a decision on whether
reach a decision on whether

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decide whether vs decide on whether

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