| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] been [v-ing] for three [noun pl] | 14 |
|
| 2 | [vb -s] been [v-ing] for three [noun] | 14 |
|
| 3 | has been [v-ing] for three [noun] | 9 |
|
| 4 | [vb -s] been [v-ing] for three year | 8 |
|
| 5 | [vb -s] been [v-ing] for three years | 8 |
|
| 6 | 's been [v-ing] for three [noun] | 5 |
|
