| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] be [v-ing] [adv prt] [prep] | 3209 |
|
| 2 | it be [verb] [adv prt] [prep] | 1002 |
|
| 3 | it be [v-ing] [adv] [prep] | 401 |
|
| 4 | it [be] [v-ing] [adv prt] [prep] | 258 |
|
