Yes indeed there is no single word equivalent for 'could' in French.
You have to use the verbe 'pouvoir' in the conditional present to convey the concept of ,'could' and the conditional past for, 'could have'.
Nous pourrions réduire nos dépenses = We could reduce our expenses
Vous auriez pu me prévenir= You could have warned me
In the same way 'should' will be conveyed by using the verbs 'devoir' and sometimes 'falloir'.
Hope this helps!
Sign in to submit your answer
Don't have an account yet? Join today
Test your French to the CEFR standard