| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [pron] had [been] [v-ing] for | 265 |
|
| 2 | which had [been] [verb] for | 88 |
|
| 3 | which had [been] [v-ing] [prep] | 64 |
|
| 4 | which [verb] [been] [v-ing] for | 37 |
|
| 5 | which have [been] [v-ing] for | 37 |
|
| 6 | which [vb past] [been] [v-ing] for | 12 |
|
| 7 | which had [be] [v-ing] for | 12 |
|
