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Prepositions after verbs

How to use “invoke” with prepositions

Invoke usually takes a direct object, such as a law, right, or image. “Invoke in” and “invoke by” are not standard fixed combinations, although in and by can appear with other functions in the sentence.

Quick answer

Correct use of “invoke”

Use invoke something. “Invoke by” may describe a method in passive structures. “Invoke in” can refer to context or location, not a fixed pattern after invoke.

The lawyer invoked the constitution.
The rule was invoked by the committee.
The idea is often invoked in political debates.

Choose the pattern by meaning

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

1
invoke + object

Referring to a law, right, or idea

Use invoke directly with the thing being mentioned or used as authority.

She invoked her legal rights.
The speaker invoked tradition in his speech.
2
invoked by + person/group

Naming who used the authority or rule

Use by in passive sentences to identify the user.

The emergency powers were invoked by the president.
The clause was invoked by several employees.
3
invoke in + context

Showing where an idea appears

In can introduce the context where something is invoked.

The term is often invoked in academic discussions.
Her name was invoked in the debate repeatedly.

See the difference in context

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

Construction
Example
Meaning
invoke something
They invoked a rarely used regulation.
Standard structure with a direct object.
invoked by someone
The privilege was invoked by the witness.
Passive structure naming the person or group.
invoke in
The concept is invoked in legal writing.
In introduces context or location, not a fixed verb-preposition combination.
invoke by
The effect can be invoked by pressing a button.
By may introduce a method or agent in passive constructions.

Common mistakes

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

Adding an unnecessary preposition

Invoke usually takes a direct object.

✕ She invoked in her rights. ✓ She invoked her rights.

Using “invoke by” as an active pattern

By is mainly used in passive structures or for methods.

✕ They invoke by a special rule. ✓ They invoke a special rule.

Confusing context with object

In introduces context, not the thing invoked.

✕ The lawyer invoked in the contract. ✓ The lawyer invoked the contract.

Quick practice

Choose the expression that matches the intended meaning.

1. The senator invoked ___ constitutional authority.
2. The policy was invoked ___ the board.
3. The phrase is often invoked ___ public debate.

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Frequently asked questions

Do we use “invoke in”?

Only when in introduces a context, such as invoked in debate or invoked in court.

Is “invoke by” correct?

It is natural in passive sentences, such as invoked by the committee, or when by introduces a method.

What is the normal structure with invoke?

The standard pattern is invoke + object, such as invoke a law, invoke a right, or invoke a memory.

identify-with-by-in-as, for "ignore by" or "ignore in"? illuminate by, with, at, for or in? "illustrate by" or "illustrate in"? "imagine for", "imagine by" or "imagine in"? imbue with, in, by or onto? immigrate to, from, in, with or into? impair by, for, in, because or throughout? "impart to", "impart in" or "impart by"? "impeach by" or "impeach for"? "impinge on" or "impinge upon"? "implement in" or "implement by"?

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