| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] [pron] [art] | 814 |
|
| 2 | be [verb] it [art] | 130 |
|
| 3 | [be] [v-ing] it [art] | 103 |
|
| 4 | be [v-ing] it [art] | 103 |
|
