| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] previously [been] [vb pp] | 320 |
|
| 2 | [v-ing] [adv] [been] [vb pp] | 81 |
|
| 3 | [v-ing] previously [be] [vb pp] | 8 |
|
| 4 | [v-ing] previously [been] [verb] | 8 |
|
