Complete the conditional sentences with the correct forms of the verbs in brackets. Use full forms of the verbs.

Write 1–3 words in each gap.

Zero conditional. If you [ ] (not / to charge) your phone, it [ ] (not / to work).
First conditional. If you [ ] (to prepare) well, you [ ] (to pass) the test easily.
Second conditional. If Will [ ] (to want) to come with us, he [ ] (to call) us.
Third conditional. If we [ ] (to start) doing karate, we [ ] (to be) able to protect ourselves.