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Prepositions after adjectives

Concurrent with, to, in or for?

Concurrent with is the standard pattern for events happening at the same time. Other prepositions usually belong to different sentence structures or specialised contexts.

Quick answer

Which preposition follows concurrent?

Use concurrent with to mean happening at the same time as something else. Concurrent in appears in limited formal contexts. Concurrent to and concurrent for are generally not standard combinations.

The strike was concurrent with the elections.
The two projects ran concurrent with each other.
Their authority was concurrent in several areas.

Choose the pattern by meaning

These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.

1
concurrent with + event/process

Showing simultaneous timing

Concurrent with is the standard way to express that two things happen together.

The policy change was concurrent with economic reforms.
Her appointment was concurrent with the merger.
2
concurrent in + area/jurisdiction

Showing shared authority or existence

Concurrent in appears mainly in legal or formal English for shared powers or roles.

The agencies have concurrent in jurisdiction.
Their responsibilities are concurrent in several departments.
3
concurrent for + period

Describing duration in context

For can introduce a time period, but it is not a fixed complement of concurrent.

The contracts remained concurrent for six months.
The sessions ran concurrent for the entire week.

See the difference in context

The same subject can take different constructions because each sentence answers a different question.

Construction
Example
Meaning
concurrent with
The conference was concurrent with the trade fair.
Standard pattern meaning at the same time as.
concurrent to
The reforms were concurrent to the crisis.
Generally nonstandard in current English; concurrent with is preferred.
concurrent in
The courts have concurrent in authority.
Limited formal use related to shared jurisdiction or status.
concurrent for
The agreements remained concurrent for one year.
For introduces duration, not a fixed adjective-preposition pair.

Common mistakes

Some combinations appear in real text but do not mean what learners often assume.

Using concurrent to instead of concurrent with

With is the normal preposition for simultaneous events.

✕ The ceremony was concurrent to the festival. ✓ The ceremony was concurrent with the festival.

Using concurrent in for timing

Concurrent in is not usually used for events happening at the same time.

✕ The talks were concurrent in the elections. ✓ The talks were concurrent with the elections.

Omitting the comparison after concurrent with

Concurrent with normally compares one event to another.

✕ The changes were concurrent. ✓ The changes were concurrent with the expansion plan.

Quick practice

Choose the expression that matches the intended meaning.

1. The investigation was concurrent ___ the audit.
2. The agencies have concurrent authority ___ several regions.
3. The contracts remained concurrent ___ two years.

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Paste the complete sentence below. Linguix checks the preposition together with grammar, spelling, punctuation, and style.

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Frequently asked questions

Is concurrent to correct?

It is generally considered nonstandard. Concurrent with is preferred in modern English.

What does concurrent with mean?

It means happening at the same time as something else.

Where is concurrent in used?

It appears mainly in legal or formal writing about shared authority or status.

calm, in, calm, for, calm, about "candid about" or "candid in"? capable of or in? careful about, with, of, in or on? careless about, with, in, of or on? caribbean in, for, with, to or on? "catastrophic for" or "catastrophic to"? "cautious about" or "cautious in"? celtic in, for, on, at or to? central to, in, for, at or of? "certain of" or "certain about"? "challenging for" or "challenging of"?

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