How much did it costed?

The Conversation tweeted about an article way back in 2018, when things like the World Cup still happened, and included the phrase could have costed (it's also in the article itself):

Watching the #WorldCup during working hours could have costed as much as US$10.4 billion in lost production time (in 2010).

But there are multiple ways employers can make up for this by embracing the tournament: https://t.co/qyewW8oxVQ pic.twitter.com/apqvOr9zgF

— The Conversation (@ConversationUK) June 12, 2018

In Standard English that would be could have cost – cost is irregular and has cost as its past participle as well as the bare form. In fact, costed isn't even the simple past tense of this version of the verb, as that's also cost:

It costs	Present
It cost	Past
It has cost	Perfect

 and so on. 

I say 'this version of the verb' because there's another version of cost that does have costed as the past tense: the one that means 'estimate the price of' rather than 'have a price of', as in We costed the new plans and decided that they were not viable. So there is this form costed that exists, and that you might have heard just as recently as the form cost, and you might reach for that when you're looking for the relevant form to follow the perfect auxiliary have. And then that makes it nice and similar to all the other regular verbs like could have washed, could have dusted, could have wasted, etc. 

I predicted that this mistake would be much less likely to occur with did instead of could have. While could have requires the past participle (actually it's have that requires it, so you'd also get it has lasted us ten years, and by extension possible it has costed us a fortune), did doesn't – it requires the bare form of the verb: Did it last long? rather than Did it lasted long? and so presumably you would expect Did it cost a lot rather than Did it costed a lot? 

Well, never make predictions about what kind of variation people will produce. I'll leave the actual numbers to someone else, but a google search for "did it costed" brings up results, and not just people asking if it's correct to say that (though they're the top hits). There are also examples where it's used as the simple past form, as in I wonder how much that upgrade costed. 

English, amirite? 

Past tense is not past

It was the final of the Great British Bake Off last week. Now that it's been long enough for everyone to catch up, I can post this with no spoilers.

One of the contestants was Ruby, a very young baker (just 20) who divided opinion: many were annoyed by her apparent lack of confidence, thinking that it seemed fake. This seemed a bit harsh to me, but then as a university lecturer I'm well placed to see the lack of confidence that many young women have in their own abilities. Ruby has won over a lot of people with this article about the way she and the other female contestants were treated.

But lots of people loved Ruby and were rooting for her to win. She didn't, losing out to the contestant who was better in the final, as is right and proper. On twitter, The Invisible Woman tweeted her thoughts in the moments before the announcement was made:

Tweet: "'We will always remember Ruby for her perfect picnic pie...' I think that past tense is a clue."

The Invisible Woman is an intelligent woman and we all tweet things without thinking about them properly, so I just want to be clear that I'm not picking on her or making fun of her for making a mistake. Nevertheless, it is a mistake, and it's interesting to see why it might have been made.

We can distinguish between 'tense' and 'time' - we might talk about past, present, future, and so on, but we might not always talk about past time with past tense, for instance. Just imagine someone telling a story and saying 'So I start walking away, and he says...'. If we talk about tense, we mean something that is a grammatical feature of the language - an ending on a verb, or a word that functions to make the sentence past.

English has two tenses that are indicated with inflection on the verb: present (with either no ending or -s) and past (with -ed or an irregular ending):

walk - walks - walked

To indicate other tenses, other methods are used. We might discuss the future and use be going to, or just a present tense verb: The party starts at 8 tonight. Future tense can also be marked 'periphrastically' - that means with another word, will. That's what we've got in the tweet above: We will always remember. Future tense is about is non-past as tenses get. But not only that, it's not even referring to past time. It's referring to some time in the future, using future will, describing the action at that future time. The only past-ness about it is the fact that the meaning of remember refers to the past - if you remember something, you necessarily remember a past event.