| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had [be] [v-ing] for | 496 |
|
| 2 | had not [be] [v-ing] | 228 |
|
| 3 | had not [be] for | 185 |
|
| 4 | not [be] [v-ing] for | 84 |
|
