Multiple choice

What is the past tense of "Natasha can calculate very quickly"?

  1. Natasha calculated very quickly.

  2. Natasha was calculating very quickly.

  3. Natasha could calculate very quickly.

  4. Natasha can't count.

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

The modal verb 'can' changes to its past tense form 'could' to indicate the past ability of the subject.