| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [be] [v-ing] [prep] | 2310 |
|
| 2 | [conj] [be] [v-ing] [prep] | 1547 |
|
| 3 | [conj] [vb past] [v-ing] [prep] | 515 |
|
| 4 | [conj] [vb past] [be] [v-ing] | 216 |
|
| 5 | [conj] [vb past] [be] [prep] | 166 |
|
