| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [v-ing] [conj] [pron] [verb] | 594 |
|
| 2 | [was/were] [verb] [conj] [pron] have | 435 |
|
| 3 | [be] [v-ing] [conj] [pron] have | 274 |
|
