Prepositions after adjectives

How to use “vacant” with prepositions

Vacant is commonly followed by for when referring to a role or space available for use. In and by are usually separate place or time expressions, not fixed combinations with vacant.

Quick answer

Vacant + preposition

Use vacant for to show that a position, room, or seat is available for someone or something. Vacant in usually refers to location inside a place, and vacant by often refers to a deadline or time.

The apartment is vacant for immediate occupancy.
Two seats are vacant for guests.
Several offices are vacant in the west wing.
The desk must be vacant by Friday.

Choose the pattern by meaning

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

1
vacant for + person or purpose

Showing availability

Use vacant for when something is available for a person, activity, or use.

The position is vacant for internal candidates.
A table is vacant for four guests.
2
vacant in + place

Describing location

In can introduce the place where something is vacant. It is not usually selected by vacant itself.

Several units are vacant in the building.
There are no rooms vacant in this hotel tonight.
3
vacant by + time

Giving a deadline or time

By usually introduces the time when a place must become vacant.

The office must be vacant by noon.
All rooms should be vacant by checkout time.

See the difference in context

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

Construction
Example
Meaning
vacant for
The role is vacant for qualified applicants.
available for someone or something
vacant in
Three apartments are vacant in this block.
in shows the location of the vacant apartments
vacant by
The room must be vacant by Monday.
by gives the latest time
vacant at
The desk is vacant at the moment.
at the moment is a time expression, not a fixed pattern

Common mistakes

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

Using in instead of for for availability

Use for when you mean available for a person or purpose.

✕ The position is vacant in new staff. ✓ The position is vacant for new staff.

Treating by as a fixed partner of vacant

By usually introduces a deadline, not the object of vacant.

✓ The apartment must be vacant by July.

Using of after vacant

Vacant is not normally followed by of.

✕ The seat is vacant of passengers. ✓ The seat is vacant.

Quick practice

Choose the expression that matches the intended meaning.

1. The office must be vacant ___ Friday evening.
2. Several rooms are vacant ___ tourists this week.
3. Two apartments are vacant ___ this building.

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Frequently asked questions

Can I say vacant for rent?

Yes. Vacant for rent is used to show that a property is available to rent.

Is vacant in a fixed expression?

Usually no. In normally introduces the place where something is vacant.

Can vacant by describe time?

Yes. It often means that a place must be empty before a certain time.

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