| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [be] [v-ing] [prep] [art] | 751 |
|
| 2 | [be] [v-ing] [prep] [art] time | 143 |
|
| 3 | [prep] [v-ing] [prep] [art] time | 42 |
|
| 4 | [prep] [be] [prep] [art] time | 14 |
|
