| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] ' [noun sg] course | 16 |
|
| 2 | [noun pl] ' training course | 11 |
|
| 3 | [noun pl] ' training course | 11 |
|
| 4 | teachers ' [noun] course | 10 |
|
