| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [been] [verb] [to-vb] for | 58 |
|
| 2 | had [been] trying [to-vb] [prep] | 17 |
|
| 3 | have [been] trying [to-vb] for | 15 |
|
| 4 | [verb] [been] trying [to-vb] for | 15 |
|
| 5 | had [been] [v-ing] [to-vb] for | 14 |
|
| 6 | [vb past] [been] trying [to-vb] for | 7 |
|
| 7 | had [been] trying [verb] for | 7 |
|
| 8 | had [be] trying [to-vb] for | 7 |
|
| 9 | had [been] try [to-vb] for | 7 |
|
