| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [vb pp] [to-vb] their [adj] | 278 |
|
| 2 | [is] [vb pp] [to-vb] [pron] [adj] | 146 |
|
| 3 | [is] [verb] [to-vb] their [adj] | 9 |
|
| 4 | [is] [vb pp] [verb] their [adj] | 6 |
|
