Construction or contraction?

My friend spotted this sign in Phnom Penh, Cambodia. His comment was, "No wonder they are hard at labor."

The words in Khmer say, "Under Construction". This is correct. The one who provided the English text needs to go back to school. It's probably a man, since men do not have contractions.

Maybe his English is under construction, or under contraction so he can't think straight.

Whichever the case, it always pays to check a few times before sending the final text for print.

Have fun with English!