| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] been [verb] for | 1634 |
|
| 2 | [vb past] been [v-ing] for | 584 |
|
| 3 | [vb past] been writing [prep] | 22 |
|
| 4 | [vb past] been writing [prep] | 22 |
|
| 5 | [vb past] been write for | 11 |
|
| 6 | [verb] been writing for | 9 |
|
| 7 | [vb past] [been] writing for | 6 |
|
| 8 | [vb past] been writing for | 6 |
|
| 9 | [vb past] [be] writing for | 6 |
|
| 10 | [vb past] be writing for | 6 |
|
