Breakdown of باید همهی تابلوها را خوب خواند.
خواندنkhândan
to read / to study (a subject)
راrâ
definite direct object marker
بایدbâyad
must
خوبkhub
well / good
Questions & Answers about باید همهی تابلوها را خوب خواند.
Why is the verb خواند used instead of a subjunctive form like بخواند or بخوانیم?
This is the core of the impersonal construction you are learning! When باید is used with the short infinitive (which is identical to the past stem, like خواند), it means 'one must read' or 'people in general must read'. It does not refer to a specific person's obligation.
Why do we need the word را after تابلوها here?
The word را is used to mark specific direct objects. Because the sentence is talking about 'all the signs' (همهی تابلوها) rather than just signs in general, the object is specific and therefore requires را.
Why is there a ی at the end of همه (همهی)?
The word همه (all) is linked to تابلوها (signs) to mean 'all of the signs'. This connection requires the ezâfe vowel. Because همه ends in a silent 'e' sound, we must add the letter ی to carry the ezâfe sound between the two words.
How can we tell that خوب means 'well' instead of 'good' in this sentence?
In Farsi, adjectives and adverbs often share the exact same form. Because خوب comes right before the verb خواند to describe how the action should be done, it acts as an adverb meaning 'well' or 'carefully'.