Irregular Verb Swim: swim - swam - swum
The irregular verb swim does not form its past tense by adding -ed.
| Base form | Simple past | Past participle |
|---|---|---|
| swim | swam | swum |
How to Use It
- Present: I swim.
- Past: Yesterday I swam.
- Present perfect: I have swum.
Remember
Use the past participle (swum) after have, has or had, and in passive sentences. Learn the three forms together: swim - swam - swum.
See also: The Simple Past Tense and The Present Perfect Tense.