| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was [v-ing] [adv prt] [prep] [art] | 762 |
|
| 2 | what was [v-ing] [adv prt] [prep] | 135 |
|
| 3 | what was [v-ing] [prep] [art] | 87 |
|
