| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] it [vb past] be [v-ing] | 6 |
|
| 2 | [adv] it had be [v-ing] | 6 |
|
| 3 | [adv] it [vb past] been [v-ing] | 6 |
|
