What are the modals 'may' and 'can' in your language (if ...), and what derivations do you have of those verbs? In English there are some: might (power) for example. But there might be more. 'Power' refers to French 'pouvoir'. In Dutch there is 'kunnen' and 'mogen', and quite some derivations: - macht, power - vermogen, capacity, maybe also power - kunst, art - kunde, craftmanship There might still be more, but these already give you some idea.