| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] [Wh adv] could | 88 |
|
| 2 | now [Wh adv] [modal v] | 46 |
|
| 3 | now [Wh adv] [vb mod] | 46 |
|
| 4 | now [adv] could | 7 |
|
| 5 | now [Wh adv] could | 5 |
|
