| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | he had be [v-ing] on | 35 |
|
| 2 | he had [be] [v-ing] on | 35 |
|
| 3 | he had [be] [v-ing] on | 35 |
|
| 4 | he had been [v-ing] on | 35 |
|
| 5 | he had [been] [v-ing] on | 35 |
|
| 6 | he had [be] working on | 11 |
|
