| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [is] [adv] [pron] can | 214 |
|
| 2 | [is] [Wh adv] [pron] can | 135 |
|
| 3 | [is] when [pron] [modal v] | 55 |
|
| 4 | [is] when [pron] can | 16 |
|
| 5 | [be] when [pron] can | 16 |
|
