| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | was [verb] at | 6692 |
|
| 2 | was [v-ing] at | 2033 |
|
| 3 | [be] laughing at | 134 |
|
| 4 | be laughing at | 134 |
|
| 5 | [was/were] laughing at | 87 |
|
| 6 | was laughing [prep] | 83 |
|
| 7 | was laughing [prep] | 83 |
|
| 8 | was laugh at | 71 |
|
| 9 | was laughing at | 68 |
|
