| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | be [v-ing] [adv prt] [prep] | 7276 |
|
| 2 | be [v-ing] [prep] a | 6861 |
|
| 3 | [v-ing] [adv prt] [prep] a | 2313 |
|
| 4 | be [adv prt] [prep] a | 1126 |
|
| 5 | be [v-ing] [adv prt] a | 705 |
|
