| Similarity | Rank | |
|---|---|---|
| be_a_tough | 0.779 | 36164 |
| tough | 0.747 | 4367 |
| it_be_tough | 0.741 | 29779 |
| be_very_hard | 0.681 | 91214 |
| it_be_a_tough | 0.677 | 93393 |
| it_be_not_easy | 0.657 | 29647 |
| be_very_difficult | 0.650 | 37607 |
| a_tough | 0.644 | 26323 |
| be_not_easy | 0.642 | 17254 |
| hard | 0.605 | 1452 |
| it_be_hard | 0.602 | 12868 |
| difficult | 0.602 | 2515 |
| be_tricky | 0.600 | 48836 |
| can_be_hard | 0.594 | 97851 |
| very_hard | 0.586 | 41193 |
| really_hard | 0.583 | 64966 |
| it_be_difficult | 0.579 | 31149 |
| be_difficult_for | 0.577 | 52554 |
| be_extremely_difficult | 0.577 | 97037 |
| a_difficult | 0.571 | 12053 |
| be_hard_to | 0.567 | 23656 |
| not_easy | 0.559 | 65092 |
| be_the_most_difficult | 0.558 | 91080 |
| get_hard | 0.552 | 65510 |
| be_not_always_easy | 0.551 | 89460 |