| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [adv] it 's because | 49 |
|
| 2 | perhaps it [be] because | 48 |
|
| 3 | perhaps it be because | 48 |
|
| 4 | [adv] it 's because | 45 |
|
| 5 | perhaps it [is] because | 26 |
|
| 6 | perhaps it 's [conj] | 15 |
|
| 7 | perhaps it 's because | 10 |
|
| 8 | perhaps [pron] 's because | 10 |
|
| 9 | perhaps [pers pn] 's because | 10 |
|
| 10 | perhaps it 's because | 10 |
|
