| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [been] [v-ing] for [noun] | 93 |
|
| 2 | [noun pl] [vb past] [been] [v-ing] [noun] | 45 |
|
| 3 | [noun pl] [vb past] [been] [v-ing] for | 40 |
|
| 4 | [noun pl] [vb past] [v-ing] for [noun] | 12 |
|
