Collocations for worsen - verb

considerably, dramatically, markedly, significantly
The problem has worsened considerably in recent months.

gradually, progressively, steadily
rapidly
suddenly

continue to
The economic recession has continued to worsen.

be expected to, be likely to

Worsen is used with these nouns as the subject:
circumstance, condition, crisis, health, pain, ratio, relation, relationship, situation, symptom, weather

Worsen is used with these nouns as the object:
condition, congestion, outlook, problem, recession, situation