| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] been [v-ing] this [noun] | 21 |
|
| 2 | [vb past] [been] [v-ing] this [noun sg] | 21 |
|
| 3 | [vb past] [been] [v-ing] this [noun] | 21 |
|
| 4 | had [been] [v-ing] this [noun] | 15 |
|
| 5 | 'd [been] [v-ing] this [noun] | 6 |
|
