| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [prep] [Wh det] [pers pn] could [vb infin] | 20 |
|
| 2 | [adv] [prep] what [pers pn] could [verb] | 12 |
|
| 3 | [adv] [prep] [Wh det] [pers pn] could [verb] | 11 |
|
| 4 | [adv] [prep] which [pers pn] could [verb] | 8 |
|
| 5 | [adv prt] [prep] [Wh det] [pers pn] could [verb] | 8 |
|
| 6 | [adv] [prep] [Wh det] he could [verb] | 7 |
|
| 7 | [adv] [prep] [Wh det] they could [verb] | 6 |
|
