| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] could [not/n't] [pers pn] [adv] [vb infin] | 15 |
|
| 2 | [Wh adv] could [not/n't] [pers pn] [adv] [vb infin] | 13 |
|
| 3 | why could [not/n't] [pers pn] [adv] [vb infin] | 13 |
|
| 4 | why could [not/n't] [pers pn] [adv] [vb infin] | 13 |
|
| 5 | could [not/n't] [pers pn] [modal v] [adv] [vb infin] | 9 |
|
| 6 | could [not/n't] [pers pn] [vb mod] [adv] [vb infin] | 9 |
|
| 7 | could [not/n't] [pers pn] could [adv] [vb infin] | 7 |
|
| 8 | could [not/n't] [pers pn] could [adv] [vb infin] | 7 |
|
| 9 | could [not/n't] [pers pn] [prep] [adv] [vb infin] | 5 |
|
| 10 | could [not/n't] [pers pn] at [adv] [vb infin] | 5 |
|
| 11 | could [not/n't] [pers pn] [prep] [adv] [vb infin] | 5 |
|
| 12 | could [not/n't] [pers pn] at [adv] [vb infin] | 5 |
|
| 13 | could [not/n't] [pers pn] [adv] [vb infin] [verb] | 7 |
|
| 14 | could [not/n't] [pers pn] [adv] [vb infin] [adv] | 7 |
|
| 15 | could [not/n't] [pers pn] [adv] [vb infin] [art] | 6 |
|
| 16 | could [not/n't] [pers pn] [adv] [vb infin] [art] | 6 |
|
