| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [be] [v-ing] [prep] | 2310 |
|
| 2 | [be] [v-ing] [prep] three | 110 |
|
| 3 | [vb past] [be] [prep] three | 7 |
|
| 4 | [vb past] [v-ing] [prep] three | 5 |
|
