| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | carbon [noun] | 1924 |
|
| 2 | carbon [noun sg] | 1720 |
|
| 3 | [noun sg] monoxide | 287 |
|
| 4 | [noun] monoxide | 287 |
|
| 5 | carbon monoxide | 277 |
|
| 6 | carbon monoxide | 277 |
|
