| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | i had been [verb] [prep] | 232 |
|
| 2 | i had been [v-ing] [prep] | 100 |
|
| 3 | [pron] had been writing [prep] | 15 |
|
| 4 | i have been writing [prep] | 10 |
|
| 5 | i [verb] been writing [prep] | 10 |
|
| 6 | i [vb past] been writing [prep] | 6 |
|
| 7 | i had be writing [prep] | 5 |
|
| 8 | i had [been] writing [prep] | 5 |
|
| 9 | i had been write [prep] | 5 |
|
| 10 | i had [be] writing [prep] | 5 |
|
