| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] been [v-ing] for [noun] | 48 |
|
| 2 | has [been] [v-ing] for [noun] | 32 |
|
| 3 | [vb -s] [been] [v-ing] for [noun pl] | 31 |
|
| 4 | [vb -s] [been] [v-ing] for year | 18 |
|
| 5 | [vb -s] [been] [v-ing] for years | 18 |
|
| 6 | 's [been] [v-ing] for [noun] | 16 |
|
| 7 | [vb -s] [been] [v-ing] for [noun sg] | 13 |
|
