| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun sg] is [vb pp] at [det] stage | 8 |
|
| 2 | [noun] is [vb pp] at [det] stage | 8 |
|
| 3 | is [adv] [vb pp] at [det] stage | 6 |
|
| 4 | is [adv] [vb pp] at [det] stage | 6 |
|
