| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb mod] be a [noun] [prep] [pron] | 391 |
|
| 2 | [vb mod] be [art] [noun] [prep] their | 64 |
|
| 3 | [modal v] be a [noun] [prep] their | 31 |
|
| 4 | [vb mod] [be] a [noun] [prep] their | 31 |
|
