| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [vb mod] [verb] a [noun] | 963 |
|
| 2 | it [vb mod] [verb] a [noun sg] | 918 |
|
| 3 | [pron] [vb mod] [verb] a while | 31 |
|
| 4 | it [vb mod] [verb] [art] while | 17 |
|
| 5 | it [vb mod] [verb] a while | 17 |
|
| 6 | it [modal v] [verb] a while | 17 |
|
| 7 | it [vb mod] [verb] a while | 17 |
|
| 8 | it [vb mod] [verb] [art] while | 17 |
|
