| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | they [be] [v-ing] [prep] | 3502 |
|
| 2 | [be] [v-ing] [prep] two | 198 |
|
| 3 | they [be] [v-ing] two | 22 |
|
| 4 | they [be] [prep] two | 21 |
|
