| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it be [prep] [v-ing] | 2114 |
|
| 2 | [noun pl] be [prep] [v-ing] | 315 |
|
| 3 | [noun pl] it be [prep] | 135 |
|
| 4 | [noun pl] it be [v-ing] | 119 |
|
