| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | had be [verb] to | 2095 |
|
| 2 | had be [v-ing] to | 118 |
|
| 3 | [verb] be happening to | 25 |
|
| 4 | have be happening to | 21 |
|
| 5 | had be happening [prep] | 13 |
|
| 6 | had be happening [prep] | 13 |
|
| 7 | [vb past] be happening to | 5 |
|
| 8 | had be happening to | 5 |
|
| 9 | had be happen to | 5 |
|
| 10 | had [be] happening to | 5 |
|
