Justin Bieber gets his grammar corrected by a schoolboy

He used the 'subjunctive mood' incorrectly!

Justin Bieber
Published 9th Mar 2016

A letter to Justin Bieber written by an 11-year-old boy has gone viral after his teacher posted it online.

In the letter the boy says the 'Sorry' singer uses the 'subjunctive mood' incorrectly in his 2012 hit 'Boyfriend'. The unnamed boy says, "If current performers, such as Beyoncé can write a song using the subjunctive mood correctly, so must you."

The year 5/6 boy goes on to say, "In the song, you can be heard – on a number of occasions – stating 'If I was your boyfriend': here you have clearly used the subjunctive mood incorrectly.

"The correct lyrics should, in fact, be 'If I were your boyfriend'."

The boy's teacher Louise Williams posted the letter on Facebook saying, "Please like/share this letter written by a pupil from my year 5/6 class, in South West Cornwall. They want to see how far it will travel and whether we can get a response!"

(function(d, s, id) { var js, fjs = d.getElementsByTagName(s)0]; if (d.getElementById(id)) return; js = d.createElement(s); js.id = id; js.src = "//connect.facebook.net/en_GB/sdk.js#xfbml=1&version=v2.3"; fjs.parentNode.insertBefore(js, fjs);}(document, 'script', 'facebook-jssdk')); > Please like/share this letter written by a pupil from my year 5/6 class, in South West Cornwall. They want to see how...> > > Posted by [Louise Williams on

She goes on to say "A number of people have commented on this child's terrible use of capital letters on sincerely. He did realise his mistake".

The post has received comments from around the world including New Zealand, Australia and Poland.

WATCH: 'Boyfriend' By Justin Bieber »

Justin Bieber who starts his 'Purpose' tour today has yet to respond to the boy's letter.