| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | it have been [adv] a [noun sg] | 35 |
|
| 2 | it had been [adv] a [noun sg] | 21 |
|
| 3 | it have been quite a [noun sg] | 15 |
|
| 4 | it have been quite a [noun sg] | 15 |
|
| 5 | it 's been [adv] a [noun sg] | 13 |
|
| 6 | it have been [adv] a year | 7 |
|
| 7 | it have been [adv] a day | 5 |
|
