Fill in the blanks with an appropriate verb form:

We ……………………… nothing from our ancestors.

have learnt

The appropriate verb form to fill in the blank is have learnt. The present perfect tense of the verb "learn" is have learnt. The context of the sentence indicates that the speaker is talking about something that has happened in the past and is still relevant in the present, so the present perfect tense is the most appropriate tense to use.

The other options are incorrect.

• Are learning is the present continuous tense of the verb "learn".
• Had learnt is the past perfect tense of the verb "learn".
• Learnt is the simple past tense of the verb "learn".