| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] [vb past] to be its | 7 |
|
| 2 | [pers pn] [vb past] to be its | 6 |
|
| 3 | [vb past] to be [verb] its | 12 |
|
| 4 | [vb past] to be [v-ing] its | 11 |
|
| 5 | [vb past] to be its [noun] | 6 |
|
| 6 | [vb past] to be its [adj] | 5 |
|
