| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [det] [noun] | 2922 |
|
| 2 | be [det] [noun] [v-ing] | 567 |
|
| 3 | it be [det] [v-ing] | 139 |
|
| 4 | it be [noun] [v-ing] | 128 |
|
| 5 | it [det] [noun] [v-ing] | 6 |
|
