| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could n't [pron] [verb] [adj] [noun] | 11 |
|
| 2 | could not [pron] [vb infin] [adj] [noun] | 11 |
|
| 3 | could not [pron] [verb] [det] [noun] | 10 |
|
| 4 | could not [pers pn] [verb] [adj] [noun] | 10 |
|
| 5 | could not [pron] [verb] [adj] [noun sg] | 7 |
|
