| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | has been [v-ing] for [num] [noun pl] | 56 |
|
| 2 | has been [v-ing] for [num] year | 50 |
|
| 3 | has been [v-ing] for [num] years | 50 |
|
| 4 | has been running for [num] [noun] | 14 |
|
| 5 | has been [v-ing] for three [noun] | 9 |
|
| 6 | has been [v-ing] for two [noun] | 5 |
|
