| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [adv] be [prep] | 932 |
|
| 2 | had [adv] be [prep] | 520 |
|
| 3 | have previously be [prep] | 17 |
|
| 4 | [verb] previously be [prep] | 17 |
|
| 5 | [vb past] previously be [prep] | 16 |
|
| 6 | had previously be [prep] | 15 |
|
| 7 | had previously [be] [prep] | 15 |
|
