| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [v-ing] [art] | 880 |
|
| 2 | be [v-ing] [pron] [art] | 814 |
|
| 3 | it be [v-ing] [pron] | 768 |
|
| 4 | it be [pron] [art] | 142 |
|
| 5 | it [v-ing] [pron] [art] | 5 |
|
