| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] [art] 50 [unc] | 50 |
|
| 2 | [prep] [art] 50 [no cls] | 46 |
|
| 3 | [prep] [art] 50 per | 36 |
|
| 4 | [prep] [art] 50 per | 36 |
|
| 5 | [prep] a 50 [unc] | 29 |
|
| 6 | [prep] the 50 [unc] | 21 |
|
| 7 | of [art] 50 [unc] | 12 |
|
| 8 | of [art] 50 [unc] | 12 |
|
| 9 | for [art] 50 [unc] | 9 |
|
| 10 | for [art] 50 [unc] | 9 |
|
| 11 | with [art] 50 [unc] | 7 |
|
| 12 | with [art] 50 [unc] | 7 |
|
| 13 | [prep] [art] 50 mg/litre | 6 |
|
| 14 | [prep] [art] 50 mg/litre | 6 |
|
