only
only — adjective
1. used before a noun to show that one person, thing, or reason exists, or that no
used before a noun to show that one person, thing, or reason exists, or that no other choice of the same kind would do.
Mia was the only student in class who finished the puzzle.
the only + singular noun
This is our only key, so don't leave it on the train.
possessive + only + noun
Her only sister lives in Tainan and teaches science at a junior high.
The only reason Ken stayed home was his son's fever.
Of all the shoes in town, these were the only ones that fit.
- additional
means there is one more besides the first one
- other
points to a different person or thing instead of the unique one already named
文法句型
the only + noun
my/her/our only + noun
an only child
用法筆記
Usually placed directly before the noun: 'the only bus', 'my only chance', 'her only worry'. Distinguish from adverb sense 1, where 'only' limits the whole statement or amount instead of naming one unique noun.
常見錯誤
only — adverb
1. used to limit a person, thing, amount, time, or action, showing that nothing els
used to limit a person, thing, amount, time, or action, showing that nothing else is included.
The museum opens only on Saturdays during the winter.
only + prepositional phrase
Nora brought only two sandwiches for the hiking trip.
only + number
We only use this door after ten at night.
The children only wanted soup after the long bus ride.
This card works only in the library printer upstairs.
- just
often works in the same position, especially in speech
- merely
more formal and often used in writing
- solely
formal and stronger when stressing exclusiveness
- exclusively
formal and common in rules, notices, and business contexts
- also
adds something instead of limiting it
- additionally
formal way to show more items are included
文法句型
only + number
only + noun phrase
only + prepositional phrase
only + verb phrase
用法筆記
Place 'only' as close as possible to the word or phrase it limits. Distinguish from adjective sense 1, where 'only' describes a noun as the one and no other.
常見錯誤
2. in the fixed phrase 'only just', used to show that something happened a very sho
in the fixed phrase 'only just', used to show that something happened a very short time before now or before another event.
Ava had only just sat down when the fire alarm rang.
only just + past perfect
We only just arrived, and the concert was already ending.
Daniel only just learned about the meeting this morning.
The train had only just left when Mei reached the platform.
Our guests were only just leaving as the rain began.
- just
common in speech, but it can be less precise on its own
- recently
broader and does not suggest such a very short gap
- a moment ago
more explicit and often points to the present moment
文法句型
only just + past tense
only just + past perfect
only just + present perfect
用法筆記
Usually used with a completed event, often in the past tense or past perfect. Distinguish from sense 3, where 'only just' means a result was barely enough or barely successful.
常見錯誤
3. in the fixed phrase 'only just', used to show that something was barely enough,
in the fixed phrase 'only just', used to show that something was barely enough, barely successful, or very close to not happening.
Leo caught the last bus, but only just.
only just at clause end
There was only just enough rice for the six children.
only just + enough
Mina only just managed to lift the heavy box.
The dog could only just squeeze through the broken gate.
Our plane landed on time, but only just.
- easily
shows there was no difficulty or narrow escape
- comfortably
suggests there was more than enough time, space, or ability
文法句型
only just + enough
only just + manage to
only just + verb
only just at clause end
用法筆記
Often used with 'enough', 'manage to', or at the end of a clause after a narrow success. Distinguish from sense 2, where 'only just' focuses on how recently something happened.
常見錯誤
4. used in the pattern 'not only ... (but) also' to add a second fact, often one th
used in the pattern 'not only ... (but) also' to add a second fact, often one that makes the first fact stronger or more surprising.
Not only did Sara cook dinner, but she also washed every dish.
fronted not only + inversion
The storm not only flooded roads but also cut power overnight.
not only ... but also ...
Not only was the room small, it was also freezing.
This app not only tracks steps but also reminds users to drink water.
Not only did Max miss the bus, he also lost his phone.
- as well as
adds another point, but it does not usually create the same balanced clause pair
- and also
simpler and more conversational, without the fixed structure
- besides
often adds an extra point more loosely, like an afterthought
文法句型
not only ... but also ...
Not only did + subject + verb ..., but subject also ...
Not only was + noun phrase ..., it was also ...
用法筆記
Usually paired with 'but also', though 'but' may be dropped in informal use. When 'not only' starts the clause, the auxiliary normally comes before the subject: 'Not only did she call ...'.
常見錯誤
5. used before a to-infinitive to say that one simple action is enough for another
used before a to-infinitive to say that one simple action is enough for another result to happen.
If Maya needs a ride home, she only has to text me.
only have to + verb
You only have to press this blue button to start.
Guests have only to show a passport at the gate.
The kids only had to say sorry to join again.
Ramon has only got to call, and Dad will come.
- need only
more concise and slightly more formal
- simply have to
can stress how easy the action is, but it may sound less fixed
- all you need to do is
more explanatory and common in speech
文法句型
only have to + verb
have only to + verb
have only got to + verb
用法筆記
This pattern is followed by a to-infinitive. 'Have only to' is more formal, while 'only have to' and 'only got to' are common in everyday speech.
常見錯誤
6. used to say that an action, delay, or argument will make a problem become worse
used to say that an action, delay, or argument will make a problem become worse instead of helping.
Arguing with the guard will only make the line move slower.
will only make + result
If we wait another week, the leak will only get worse.
will only get + comparative
Skipping breakfast will only leave you tired before lunch.
More angry messages will only hurt the team.
Hiding the mistake now will only cause bigger trouble later.
文法句型
will only get + comparative
will only make + noun phrase + comparative
will only cause + negative result
用法筆記
Usually points to an unwanted result, often with 'will' and verbs like 'get', 'make', 'leave', or 'cause'. The outcome is negative, not helpful.
常見錯誤
7. used before the reason something cannot happen, adding a tone of regret or apolo
used before the reason something cannot happen, adding a tone of regret or apology.
I'd lend you my bike, only the back tire is flat.
only + clause giving a regretful reason
We could eat outside, only the tables are still wet.
Rosa would call tonight, only her phone battery is dead.
The trip looked perfect, only Max had to work Saturday.
- but
the usual neutral linker, without the extra apologetic tone
- except
works for a limiting fact, but is less natural in this spoken pattern
- unfortunately
adds regret, though it does not connect two clauses in the same way
文法句型
..., only + clause
I would ..., only ...
用法筆記
Usually comes after a pause and introduces the disappointing fact that stops the plan. Distinguish from conjunction sense 1, which states the reason more neutrally.
常見錯誤
8. used in 'if only' to make a wish, hope, or regret sound especially strong.
used in 'if only' to make a wish, hope, or regret sound especially strong.
If only Maya knew where Grandpa hid the old camera.
if only + past simple for a present wish
If only the rain would stop before the school concert.
if only + would + verb
If only we had left home ten minutes earlier.
If only there were a cheap room near the station.
文法句型
if only + past simple
if only + past perfect
if only + would/could + verb
用法筆記
Almost always appears in the fixed pattern 'if only' plus a clause. Distinguish from 'only if', which gives a condition rather than a wish.
常見錯誤
9. used in a fixed informal pattern to react with annoyed surprise when someone doe
used in a fixed informal pattern to react with annoyed surprise when someone does something foolish.
Liam only went and locked the keys inside the van.
only went and + verb for annoyed surprise
The dog only went and ate Nina's birthday cake.
Ava's brother only went and told the teacher our plan.
Dad only went and left the train tickets on the kitchen table.
文法句型
only went and + past verb
only gone and + past verb
用法筆記
Mostly British and very informal. It is common in 'only went and ...' or 'only gone and ...' when the speaker sounds amused, annoyed, or both.
常見錯誤
only — conjunction
1. used between two clauses to add the one fact that stops something from happening
used between two clauses to add the one fact that stops something from happening or keeps the first statement from being fully true.
The cabin was quiet, only the old fridge hummed all night.
only + clause adding one limiting fact
The hall looked ready, only one speaker had not arrived.
We could start lunch, only Dad was still parking the car.
Marcus remembered every name, only he mixed up the twins.
The map was useful, only the street names were outdated.
- but
the usual everyday linker, but less focused on one restricting fact
- except that
closer in meaning and a little more explicit
- however
more formal and usually links separate clauses or sentences
文法句型
clause, only + limiting clause
用法筆記
Usually comes after the first clause and introduces the fact that blocks the plan or limits what was just said. Distinguish from adverb sense 7, which often sounds more apologetic or regretful.