| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [v-ing] for | 2885 |
|
| 2 | [v-ing] for [num] | 1015 |
|
| 3 | [was/were] [v-ing] [num] | 608 |
|
| 4 | [was/were] for [num] | 96 |
|
