| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [prep] a [noun] | 430262 |
|
| 2 | [prep] a [noun pl] | 2925 |
|
| 3 | [prep] [art] communications | 117 |
|
| 4 | [prep] [art] communications | 117 |
|
| 5 | [prep] a communication | 52 |
|
| 6 | [prep] a communications | 23 |
|
