| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [been] [verb] [noun] for | 286 |
|
| 2 | [been] [v-ing] [noun] for | 209 |
|
| 3 | [be] using [noun] for | 21 |
|
| 4 | [been] using [noun] [prep] | 19 |
|
| 5 | [been] use [noun] for | 13 |
|
