| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] when [pers pn] could not | 26 |
|
| 2 | [noun] when [pron] could not | 26 |
|
| 3 | [noun] [adv] he could not | 22 |
|
| 4 | [noun] [Wh adv] he could not | 17 |
|
| 5 | [noun] when he [vb mod] not | 12 |
|
| 6 | [noun] when he [modal v] not | 12 |
|
| 7 | [noun] when he could not | 6 |
|
| 8 | [noun] when he could not | 6 |
|
| 9 | [noun] when he could [adv] | 6 |
|
| 10 | [noun] when he could not | 6 |
|
