| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | a [noun] to the [noun sg] | 4928 |
|
| 2 | a [noun sg] to the [noun sg] | 4905 |
|
| 3 | a obstacle [prep] the [noun sg] | 18 |
|
| 4 | a obstacle [prep] the [noun sg] | 18 |
|
| 5 | [art] obstacle to the [noun sg] | 14 |
|
| 6 | a obstacle to [art] [noun sg] | 12 |
|
| 7 | a obstacle to [art] [noun sg] | 12 |
|
| 8 | a obstacle to the [noun] | 11 |
|
| 9 | a obstacle to the [noun sg] | 10 |
|
| 10 | a obstacle to the [noun sg] | 10 |
|
| 11 | a obstacle to the [noun sg] | 10 |
|
