| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] [adv prt] [prep] | 7276 |
|
| 2 | it be [v-ing] [prep] | 3169 |
|
| 3 | it be [adv prt] [prep] | 1645 |
|
| 4 | it be [v-ing] [adv prt] | 743 |
|
| 5 | it [v-ing] [adv prt] [prep] | 86 |
|
