| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [be] [verb] [prep] [art] | 7552 |
|
| 2 | [verb] [be] [v-ing] [prep] [art] | 2072 |
|
| 3 | [vb past] [be] [v-ing] [prep] [art] | 851 |
|
| 4 | [vb past] [be] [v-ing] [prep] [art] | 851 |
|
