Use of Shall and Should

1. "Shall" – Use and Meaning

 A. Future (Formal / Legal / British English)

Used mostly with "I" or "We" to express future actions or intentions (more formal than “will”).

         i.            I shall return soon.
→ म चाँडै फर्किनेछु।

        ii.            We shall overcome.
→ हामी जित्नेछौं।

 B. Offers and Suggestions

         i.            Shall I open the window? (Offer)
→ म झ्याल खोलूँ?

        ii.            Shall we go for a walk? (Suggestion)
→ हामी हिँड्न जाऔं?

C. Rules, Commands (formal/legal language)

         i.            The accused shall remain in custody.
→ अभियुक्त हिरासतमा रहनेछ।

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2. "Should" – Use and Meaning

A. Advice / Recommendation

         i.            You should eat healthy food.
→ तिमीले स्वस्थ खाना खानुपर्छ।

        ii.            He should study harder.
→ उसले अझ कडा मेहनत गर्नुपर्छ।

B. Obligation / Duty (less strong than 'must')

         i.            You should respect your parents.
→ तिमीले आफ्ना आमाबुबाको सम्मान गर्नुपर्छ।

C. Expectation / Probability

         i.            They should be here by now.
→ उनीहरू अहिले सम्म आइपुग्नु पर्थ्यो।

        ii.            It should take about an hour.
→ यसमा करिब एक घण्टा लाग्नुपर्छ।

D. Conditional Sentences

         i.            If you should need help, just call me.
→ यदि तिमीलाई सहयोग चाहियो भने, मलाई फोन गर।

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Summary Table

Use	Shall	Should
Future (formal, "I/we")	✅	❌
Offers/Suggestions	✅	❌
Advice	❌	✅
Duty/Obligation	❌	✅
Probability	❌	✅
Legal/Official language	✅	✅ (for formal advice)