| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [v-ing] a | 4665 |
|
| 2 | [v-ing] for a | 4459 |
|
| 3 | [was/were] [v-ing] for | 2885 |
|
| 4 | [was/were] for a | 208 |
|
