2. We ______ (not go) to school on Sundays.

Explanation:

The sentence describes a habitual action or a routine that occurs regularly on Sundays. This calls for the use of the present simple tense.

Solution:

The present simple tense for negative statements is formed with 'do not' or 'does not' followed by the base form of the verb. For the subject 'We' (first person plural), 'do not' is used.

1. Subject: We
2. Auxiliary verb: do not (don't)
3. Main verb: go

Answer: do not go