| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | is [adv] [pron] [noun] | 1096 |
|
| 2 | is [Wh adv] [pron] [noun] | 100 |
|
| 3 | be when [pron] [noun] | 52 |
|
| 4 | [be] when [pron] [noun] | 52 |
|
| 5 | [is] when [pron] [noun] | 29 |
|
| 6 | is when [pron] [noun] | 12 |
|
