| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could not [vb infin] [pron] | 1664 |
|
| 2 | could not [vb infin] [pos pn] | 467 |
|
| 3 | [modal v] not [vb infin] their | 364 |
|
| 4 | could [adv] [vb infin] their | 254 |
|
| 5 | could not [vb infin] their | 134 |
|
| 6 | could [not/n't] [vb infin] their | 134 |
|
| 7 | could not [vb infin] their | 78 |
|
| 8 | could not [verb] their | 78 |
|
