Questions & Answers about Пусть король возьмёт свой бокал.
Why is the future tense verb возьмёт used after пусть if the sentence means "Let the king take..." right now?
The particle пусть creates a third-person command (let him, let her, let them). To command a completed, single action, Russian uses the perfective aspect. Since perfective verbs do not have a present tense, we use the future tense form (возьмёт) to make this command.
Could we use the imperfective verb берёт here instead?
Yes, but it would change the meaning. Пусть король берёт свой бокал means "Let the king be taking his glass" (focusing on the process) or "Let the king take his glass" as a repeated action. Because picking up a glass is usually a single, quick action we want completed, the perfective возьмёт is much more natural here.
Why does the sentence use свой instead of его for "his"?
Свой is a reflexive possessive pronoun that means "one's own". It always refers back to the subject of the sentence. If we used его, it would imply the king is taking someone else's glass. To clearly say he takes his own glass, we must use свой.
What case is свой бокал in, and why didn't the ending change?
It is in the accusative case because it is the direct object being taken. However, бокал is a masculine inanimate noun (an object, not a living being). For masculine inanimate nouns, the accusative case looks exactly identical to the nominative dictionary form, which is why neither свой nor бокал changes its ending here.