| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [verb] a [adv] [adj] time | 245 |
|
| 2 | [verb] a [adv] [adj] time | 213 |
|
| 3 | [verb] a [adv] difficult [noun] | 62 |
|
| 4 | [verb] [art] [adv] difficult time | 9 |
|
| 5 | [verb] [art] [adv] difficult time | 9 |
|
| 6 | [verb] a [adv] difficult time | 9 |
|
| 7 | [verb] a [adv] difficult time | 8 |
|
