SimilarityRank
be_not_easy 0.779 17254
it_be_not_easy_to 0.662 49178
it_be_not_easy 0.658 29647
be_very_difficult 0.648 37607
it_be_very_difficult_to 0.646 29790
be_not_always_easy 0.641 89460
be_extremely_difficult 0.633 97037
can_be_difficult 0.628 30674
it_be_almost_impossible_to 0.599 64612
can_be_challenging 0.592 59256
it_be_difficult_to 0.576 12556
be_not_difficult 0.569 90795
it_be_very_hard_to 0.556 86037
extremely_difficult 0.553 93625
be_tricky 0.550 48836
difficult 0.545 2515
it_be_impossible_to 0.544 16856
it_be_very_difficult 0.543 71675
,_if_not_impossible 0.542 78666
it_can_be_difficult_to 0.542 36914
can_be_tricky 0.539 72729
it_be_difficult 0.539 31149
it_be_essential_to 0.537 19861
can_be_hard 0.537 97851
it_take_a_lot_of 0.535 41631