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Lesson 44B2

Modal Verbs of Deduction: must, can't, might have

अनुमानसूचक मोडल क्रियाएँ: must, can't, might have

These modals let you reason aloud about something you're not certain of — deducing what must be true, what can't be true, and what might have happened — a job Hindi hands to होगा and its past-shifted forms.

Grammar Comparison

Grammar Comparison

Deduction about the present vs. deduction about the past

English

She must be tired. (present deduction) vs. She must have been tired. (past deduction, adding have + participle)

Hindi (English explanations)

वह थकी हुई होगी। / वह थकी हुई रही होगी। (होगा से पहले रहा/रही जोड़ने से अनुमान भूतकाल की ओर खिसक जाता है)

Hindi marks epistemic deduction with होगा — literally the future form of होना, used here not for a real future but for present-tense probability: थकी हुई होगी, "she must be tired." To push that same deduction back into the past, Hindi inserts रहा/रही before होगा (थकी हुई रही होगी, "she must have been tired"), just as English inserts have + participle after the modal (must be → must have been). The same layering applies to can't (impossible) and might (uncertain): can't have left, might have forgotten. Words like शायद (perhaps) or ज़रूर (certainly) can be added on either side to fine-tune how confident the guess is, much like choosing must vs. might in English.

Vocabulary

Vocabulary

She must be tired.shee must bee TY-erd
Hindi (English explanations)
वह थकी हुई होगी।vah thakī huī hogī.
She must have been tired.shee must hav been TY-erd
Hindi (English explanations)
वह थकी हुई रही होगी।vah thakī huī rahī hogī.
He can't have left already.hee kant hav left awl-RED-ee
Hindi (English explanations)
वह इतनी जल्दी गया नहीं होगा।vah itnī jaldī gayā nahīñ hogā.
They might have forgotten.thay myt hav for-GOT-en
Hindi (English explanations)
वे शायद भूल गए होंगे।ve śāyad bhūl gae hoñge.