| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [was/were] [adv] [verb] [prep] [noun sg] | 3223 |
|
| 2 | [be] [adv] [v-ing] [prep] [noun sg] | 1103 |
|
| 3 | [was/were] [adv] [v-ing] [prep] [noun] | 822 |
|
