"मेरे दादा कल घर जायेंगे ।"

Translation: My grandfather will go home tomorrow.

[ab354117]

Why is the verb “जायेंगे” instead of “जाएँग”? Isn't the subject, my grandfather, singular and male?

[vinay92]

For words that refer to people who are older than you or in positions of authority, you treat them as though they are plural as a show of respect. So, even though दादा is singular, you use the plural जायेंगे (which can also be written as जाएँगे) and not जाएगा which is the singular form.