| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | which had [been] [verb] for | 88 |
|
| 2 | which had been [verb] for | 88 |
|
| 3 | which had be [verb] for | 88 |
|
| 4 | which had [be] [vb pp] for | 76 |
|
| 5 | which had [be] [v-ing] for | 12 |
|
| 6 | which had [be] use for | 10 |
|
| 7 | which had [be] used for | 10 |
|
| 8 | which had [be] scheduled for | 7 |
|
| 9 | which had [be] schedule for | 7 |
|
