| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it [be] [adj] [noun pl] | 1907 |
|
| 2 | it must [be] [adj] | 589 |
|
| 3 | must [be] [adj] [noun pl] | 181 |
|
| 4 | it must [be] [noun pl] | 12 |
|
