Definition of Could
Quick Meaning of Could
The past form of can, used to say what was possible or allowed in the past.
Detailed Definition of Could
Past tense of can; expressing past ability or permission, or polite requests.
How to Pronounce Could
Stress pattern: O (1-syllable word).
Tip: Sounds like /kʊd/ with short u sound, not /kaʊld/. T is silent.
Watch out: Do not pronounce the l; /kʊd/ is correct, not /kuːld/ or /kaʊld/.
How to Use Could in a Sentence
Each example shows “could” with a CEFR level so learners can pick examples that match their fluency.
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“When I was young, I could swim very well.”
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“Could you please help me with this problem?”
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“He said he could attend the meeting tomorrow.”
Synonyms and Antonyms of Could
Common Synonyms for Could
Smart Synonyms for Could — When to Use Each
- was able to
- for completed single actions in past
- might
- for expressing possibility or permission politely
Common Collocations with Could
These phrases pair with “could” in everyday English:
- could you
- could not
- I could
- could not see
Common Mistakes When Using Could
Even fluent speakers slip up with “could”. Here’s how to avoid the most common errors:
- ✗ Wrong: I could to swim when I was ten.
- ✓ Correct: I could swim when I was ten.
- Why: Modals do not take to-infinitive; use base verb after could.
- ✗ Wrong: She could goes to the party tomorrow.
- ✓ Correct: She could go to the party tomorrow.
- Why: After modal could, use base verb go, not goes.
Words Confused With Could
- Could vs Can: Can is present; could is past or more polite Compare →
Other Forms of Could
- Verb: could
Frequently Asked Questions About Could
What is the meaning of "Could"?
The past form of can, used to say what was possible or allowed in the past.
How do you pronounce "Could"?
The IPA is /kʊd/. Sounds like /kʊd/ with short u sound, not /kaʊld/. T is silent.
What part of speech is "Could"?
"Could" is a verb at A1 level (Common European Framework).
What are synonyms for "Could"?
Common synonyms include was able to, might, may.
How do you use "Could" in a sentence?
For example: "When I was young, I could swim very well."