| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [adv] [pron] could [vb infin] | 12 |
|
| 2 | it [adv] [pers pn] could [vb infin] | 12 |
|
| 3 | it [adv] could [adv] [vb infin] | 18 |
|
| 4 | it [adv] could [not/n't] [vb infin] | 15 |
|
| 5 | it [adv] could not [vb infin] | 15 |
|
| 6 | it [adv] could n't [vb infin] | 8 |
|
| 7 | it [adv] could not [vb infin] | 7 |
|
