Interested in Language
If I lose something, then the thing is lost not losing.
But when I miss a book, the the book is missing, not missed!
And If my body lacks vitamin A, then vitamin A is lacking! Shouldn't it be lacked?
Why is that?!
to miss = to regret that a person or thing is not present.
lack = to not have or not have enough of something that is needed or wanted.
and your own examples represent the definitions very well.
But isn't missed also an adjective?
The past participle of MISS can function as an adjective we can speak of a missed opportunity.
I mean when I say: I'm bored. he's boring. Aren't both bored and boring adjectives?
It's not always easy to say whether a structure is a participle or adjective in some short tenses when the verb is BE.
The journey is boring me. - verb, present progressive.
The journey is boring. - adjective.
I was bored by the whole affair. - verb, past simple passive.
I was bored. - adjective.
I think saying that "Vitamin A is lacked in one's body" is right.
We just don't say that.
Saying ""Vitamin A is lacking in one's body" also sounds right.
It is right.
It just happens that LACK is not used in the passive.
I see, thanks. :)
I guess some verbs are tricky, or maybe I'm thinking of the sentence is my own language and trying to translate it into English (subconsciously), and that's what is causing me to think that it "sounds" right.
I'm not sure whether grammarians call it passive but the sentence below is correct:
Manufacturing paint requires high levels of both technical expertise and financial resources lacked by many would-be competitors.