(Third conditional) If the baby __________________ (sleep) better last night, I__________________ (not be) so tired

To complete the sentence using the third conditional, we need to use the correct form of the verbs in parentheses. The third conditional is used to talk about hypothetical situations in the past that did not happen.

1. Formulate the Condition:

   • The past perfect form of the verb "sleep" is "had slept."

2. Formulate the Result:

   • The modal verb for "not be" in the perfect conditional is "would not have been."

Putting it all together the complete sentence is: "If the baby had slept better last night, I would not have been so tired."

This structure clearly reflects the unreal condition and its consequence.