| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | been [v-ing] for a [noun sg] | 140 |
|
| 2 | 've been [v-ing] a [noun sg] | 77 |
|
| 3 | 've been [v-ing] for a | 19 |
|
| 4 | 've been [v-ing] for [noun sg] | 8 |
|
