| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could they [adv] [vb infin] | 29 |
|
| 2 | could they not [vb infin] | 10 |
|
| 3 | could they [not/n't] [vb infin] | 10 |
|
| 4 | could they not [vb infin] | 10 |
|
| 5 | could they [adv] have | 7 |
|
| 6 | could they please [vb infin] | 7 |
|
| 7 | could they please [vb infin] | 7 |
|
