| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] to be [v-ing] [adv prt] | 158 |
|
| 2 | [adv] [vb past] to be [v-ing] | 91 |
|
| 3 | [adv] [vb past] to be [adv prt] | 15 |
|
| 4 | [adv] to be [v-ing] [adv prt] | 13 |
|
