Choose the correct verb

Work is correct in the present tense for a conditional unless clause stating a general fact. This question tests verb tense knowledge. Worked is past tense unsuitable for present conditions. Will work implies future intent not fitting the general rule. Understanding conditional clauses ensures grammatical accuracy. Unless you work hard uses present tense to express ongoing effort needed for success. This structure is common in advice or instructions. Correct verb choice enhances clarity in writing or speech. Knowing this tense is vital for professional or academic communication ensuring precise expression of conditions.