| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [v-ing] for a | 408 |
|
| 2 | [v-ing] for a long | 65 |
|
| 3 | [was/were] [v-ing] a long | 28 |
|
| 4 | [was/were] for a long | 11 |
|
