| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] at the national [noun sg] [noun sg] | 21 |
|
| 2 | [vb pp] at the national [noun sg] [noun sg] | 10 |
|
| 3 | [verb] at the national exhibition [noun sg] | 7 |
|
| 4 | [verb] at the national [noun sg] centre | 7 |
|
| 5 | held at the national [noun sg] [noun sg] | 5 |
|
| 6 | hold at the national [noun sg] [noun sg] | 5 |
|
| 7 | [vb -s] at the national [noun sg] [noun sg] | 5 |
|
