| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] [adv prt] | 20897 |
|
| 2 | had be [v-ing] | 5826 |
|
| 3 | had be [adv prt] | 465 |
|
| 4 | had [v-ing] [adv prt] | 6 |
|
