| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had been [verb] as a | 251 |
|
| 2 | had been [vb pp] as a | 230 |
|
| 3 | had been use as a | 21 |
|
| 4 | had been [v-ing] as a | 20 |
|
| 5 | had been used as a | 18 |
|
| 6 | had been see as a | 10 |
|
| 7 | had been seen as a | 10 |
|
| 8 | had been [adj] as a | 7 |
|
| 9 | had been [adj] as a | 7 |
|
| 10 | had been regard as a | 7 |
|
| 11 | had been regarded as a | 7 |
|
| 12 | had been work as a | 7 |
|
| 13 | had been working as a | 7 |
|
| 14 | had been intended as a | 6 |
|
| 15 | had been employed as a | 6 |
|
| 16 | had been employ as a | 6 |
|
| 17 | had been intend as a | 6 |
|
| 18 | had been build as a | 5 |
|
| 19 | had been built as a | 5 |
|
| 20 | had been as a [adj] | 5 |
|
| 21 | had been as a [adj] | 5 |
|
