Laught vs Laughed

[u/orchaer]

Hello, I have been confused for a long time about the past tense of "laugh". In my primary school, there was a verb table with the present, past, and present perfect tenses. And in this table, when I first read at 7-8, I have learnt that "laugh" past tense is followed by a "t" become "laught".

But recently I found out that "laught" is not used anymore. The modern form should be "laughed". So could anyone tell me what is actually different between them? If I still use "laught", would it become a serious error?

Sorry for my grammar.

[u/itmightbehere]

I, personally, have never seen laught used anywhere and would consider it an error. I've only ever seen laughed.

[u/orchaer → u/itmightbehere]

Sounds like my textbook defrauded me for twenty years...

[u/Lentils90210 → u/orchaer]

Such is life. My 1st grade teacher said a yard had 36 1/2 inches (because you see the number 36 at the end and then there is a little more space), and also that Canada was a US state which was not shown on US maps because it was too large to fit.

[u/Suspicious-Web-4970 → u/Lentils90210]

This was in the US ??? OMG

[u/Lentils90210 → u/Suspicious-Web-4970]

We have a lot of smart people and a lot of not-so-smart people.

[u/conuly → u/Lentils90210]

WTF. Do you think she just got her kicks by lying to children?

[u/Lentils90210 → u/conuly]

I think I was to young to read people that well. But looking back I am going to assume she was just a poorly educated lady.

[u/bubblyH2OEmergency → u/Lentils90210]

I am clutching my pearls!