| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [be] [v-ing] [adv] [prep] a | 508 |
|
| 2 | [am/are] [v-ing] [adv] [prep] [art] | 427 |
|
| 3 | [am/are] [verb] [adv] [prep] a | 325 |
|
| 4 | [am/are] [v-ing] [adv] [prep] a | 259 |
|
| 5 | [am/are] [v-ing] [adv] [prep] a | 131 |
|
