| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could not [verb] | 4952 |
|
| 2 | [pron] could not [vb infin] | 4948 |
|
| 3 | [pron] could [adv] understand | 363 |
|
| 4 | [pron] could [not/n't] understand | 307 |
|
| 5 | [pron] could not understand | 307 |
|
| 6 | [pron] [modal v] not understand | 276 |
|
| 7 | [pron] [vb mod] not understand | 276 |
|
| 8 | [pron] could not understand | 124 |
|
| 9 | [pron] could not understand | 124 |
|
