| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [v-ing] [prep] | 27424 |
|
| 2 | [v-ing] [pers pn] [prep] | 16236 |
|
| 3 | [was/were] [v-ing] [pers pn] | 5036 |
|
| 4 | [was/were] [pers pn] [prep] | 860 |
|
