Multiple choice softskills leadership

If we could all _____ an effort to keep this office tidier it would help

  1. make

  2. made

  3. making

  4. makes

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The sentence uses a conditional structure ('If we could...'). After the modal 'could', the base form of the verb 'make' is required. 'Made', 'making', and 'makes' violate the rules of modal verb accompaniment.