| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [verb] on this [noun sg] | 46 |
|
| 2 | been [vb pp] on this [noun sg] | 34 |
|
| 3 | been [v-ing] on this [noun sg] | 12 |
|
| 4 | been work on this [noun sg] | 7 |
|
| 5 | been working on this [noun sg] | 7 |
|
