| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | speak at [art] conference | 23 |
|
| 2 | speaking at [art] conference | 19 |
|
| 3 | speak at a conference | 16 |
|
| 4 | speak at a conference | 16 |
|
| 5 | speak at the conference | 7 |
|
| 6 | speak at the conference | 7 |
|
