| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | 's [adv] an [noun] | 291 |
|
| 2 | be [adv] an excuse | 56 |
|
| 3 | [be] [adv] an excuse | 56 |
|
| 4 | [is] [adv] an excuse | 32 |
|
| 5 | 's [adv] [art] excuse | 22 |
|
| 6 | 's [adv] [art] excuse | 22 |
|
| 7 | 's [adv] a excuse | 17 |
|
