| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] been [v-ing] for [art] | 150 |
|
| 2 | [vb past] been [v-ing] for [art] | 150 |
|
| 3 | [vb past] been [v-ing] for a | 90 |
|
| 4 | [vb past] been [v-ing] [prep] an | 38 |
|
| 5 | [vb past] been [v-ing] [prep] an | 38 |
|
| 6 | [verb] been [v-ing] for an | 31 |
|
| 7 | [vb past] been [verb] for an | 29 |
|
| 8 | [vb past] be [v-ing] for an | 16 |
|
| 9 | [vb past] [be] [v-ing] for an | 16 |
|
| 10 | [vb past] [been] [v-ing] for an | 15 |
|
| 11 | [vb past] been [v-ing] for an | 15 |
|
