| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] had been [verb] | 12699 |
|
| 2 | [pron] had been [v-ing] | 3168 |
|
| 3 | [pron] have been using | 158 |
|
| 4 | [pron] [verb] been using | 158 |
|
| 5 | [pron] had been use | 117 |
|
| 6 | [pron] [vb past] been using | 50 |
|
| 7 | [pron] had [been] using | 35 |
|
| 8 | [pron] had be using | 35 |
|
| 9 | [pron] had [be] using | 35 |
|
