| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] could [vb infin] them [prep] [verb] | 9 |
|
| 2 | [pron] could [vb infin] they [prep] [v-ing] | 9 |
|
| 3 | [pers pn] could [vb infin] they [prep] [verb] | 8 |
|
