| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [am/are] [v-ing] [verb] | 12829 |
|
| 2 | [am/are] [verb] is | 1055 |
|
| 3 | [am/are] [v-ing] is | 870 |
|
| 4 | [v-ing] [verb] is | 337 |
|
