| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] been do a [noun] | 7 |
|
| 2 | [vb past] [been] do a [noun] | 7 |
|
| 3 | [vb past] [been] do a [noun sg] | 7 |
|
| 4 | [vb past] [been] doing a [noun] | 5 |
|
