| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [vb pp] [conj] [pron] [is] | 1389 |
|
| 2 | be [vb pp] [conj] it [be] | 1164 |
|
| 3 | be [verb] [conj] it [is] | 873 |
|
| 4 | [be] [vb pp] [conj] it [is] | 750 |
|
