| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [am/are] [adv] [v-ing] [art] [noun sg] at | 10 |
|
| 2 | [am/are] [adv] [v-ing] [art] [noun sg] at | 10 |
|
| 3 | [am/are] [adv] [v-ing] a [noun sg] at | 5 |
|
| 4 | [am/are] [adv] [v-ing] a [noun sg] at | 5 |
|
