| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun] be [v-ing] [art] tough time | 7 |
|
| 2 | be [v-ing] [art] tough time [verb] | 5 |
|
| 3 | be [v-ing] [art] tough time [v-ing] | 5 |
|
