| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] been [v-ing] it for [num] | 7 |
|
| 2 | 's been [v-ing] [pers pn] for [num] | 6 |
|
| 3 | [vb -s] been doing [pers pn] for [num] | 5 |
|
