| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could not [vb infin] for [det] | 20 |
|
| 2 | could n't [verb] for [det] | 11 |
|
| 3 | could not [verb] for [det] | 9 |
|
| 4 | could not account for [det] | 5 |
|
| 5 | could not account for [det] | 5 |
|
