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Barn bør ikke spise for mye sjokolade. Du bør slutte å røkerøyke. Du burde slutte å røyke. Du burde besøke besteforeldrene dine oftere. No real difference in meaning between the present and the past tense, except that the past tense is more polite. The past participle is seldom used.
å å kunne - kan - kunne - har kunnet, can - be able to
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a) To know. Han kan mye om planter, (he . "He knows a lot about plants). "
Han kan så mye, (he . "He knows such a lot). "
b) Polite request. Kunne du hjelpe meg, (could . "Could you help me pelase)please."
c) Unfulfilled wishes. Om han bare kunne komme, (if . "If only he could come.) "
The past participle is sometimes used. Jeg har aldri kunnet fordra den mannen, (I have never been able to stand that man).
Han har aldri kunnet synge, (he . "He has never been able to sing)."
å måtte - må - måtte - har måttet, must - have to
Jeg må gå nå, (. "I must go now). "
I går måtte jeg stå opp tidlig, (yesterday . "Yesterday I had to get up early)."
The past participle is sometimes used: Jeg har alltid måttet jobbe hardt, (. "I have always had to work hard)."
Han har måttet lære å være økonomisk. "He's had to learn to be economical."
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