| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb -s] be [v-ing] [adv prt] at | 14 |
|
| 2 | [vb -s] been [v-ing] [adv prt] at | 14 |
|
| 3 | has be [v-ing] [adv prt] at | 11 |
|
| 4 | [vb -s] be going [adv prt] at | 7 |
|
| 5 | [vb -s] be [v-ing] on at | 7 |
|
