Answer:
Translation:
Formulate sentences from the word building blocks in the perfect tense. Pay attention to the information in brackets: it tells you whether you should use the modal verb as a stand-alone verb or together with another verb. Susanne - can't - do the homework (independent verb) Susanne couldn't do the homework. Sven - solve - the homework - can (together with verb).
Step-by-step explanation:
Susanne can't do the homework.
Susanne couldn't do the homework.
Sven can solve the homework.