Final answer:
To maintain subject-verb agreement, 'Manuel y yo' should be followed by 'debemos' in the present tense.
Explanation:
Manuel y yo debemos estudiar juntos para el examen del viernes.
When using the subject 'Manuel y yo' (Manuel and I), the correct form of the verb 'deber' (should) in the present tense is 'debemos' (we should).
Subject-verb agreement is crucial in Spanish, ensuring that the verb matches the subject in both person and number.
Learn more about Subject-verb agreement in Spanish here:
https://brainly.com/question/21106219
