Have got and have (for possession, relationships, illnesses etc.)
In this case there is no difference in meaning.
They’ve got a new car. or They have a new car.
Lisa has got two brothers. or Lisa has two brothers.
I’ve got a headache. or I have a headache.
-1st Difference- *For past you have to use had (without got)
Lisa had long hair. (not Lisa had got long hair.)
Questions and Negative Sentences
Have you got any questions? - I haven’t got any questions.
Do you have any questions? - I don’t have any questions.
Have you any quentions? (less usual) - I haven’t any questions. (less usual)
-2nd Difference- *As you can see grammatically all of them correct but using just have is not common.
-3rd Difference-
Have is used for many actions and experiences (but not have got)
breakfast/a cup of tea/dinner/a party/a shower/an accident/a discussion/difficulty/etc.
*Sometimes I have (=eat) a sandwich for my lunch. (not I’ve got)
The meaning of have represents action of eating that is why you have to use just have.
*I had (=experience) difficulty finding a place to live.
The meaning of had is experience difficulty doing something so, you have to use just have.
Good morning ESL, you would certainly get strange looks if you were to say, " I got a new car " in England, no matter what you think.
Grammar books are educational, as no-one would deny, but in the “real world” lots of things are said quite differently.
Please don’t let this difference of opinion escalate into a war of words. It is only my opinion based on my having been born, and living the whole of my life, in England.
Baby talk, eh? Alan, surely you are not saying that in order to use the simple past tense, you believe it is always necessary to include a reference to a specific past time in the same sentence.
There is absolutely nothing wrong with any of the following sentences:
He lost his marbles.
He has lost his marbles.
He lost his new marbles.
He has lost his new marbles.
The broader context will have an impact on whether the past simple or the present perfect would be preferable. In addition, although the inclusion or omission of the word “new” may well have a significant impact on the meaning of this sentence, it does not dictate the verb tense. The use of the word “new” is not restricted to any particular verb tense.
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In “I have got”, “have” is an auxiliary verb, and forms the present perfect with the past participle “got”. There is therefore no duplication of “possession”.
“What did you get for your birthday?” “I got a new car.”
“Your bike was stolen? So what did you do?” “I got a new car.”
“What did you do at the weekend?” “I got a new tattoo.”
These are all perfectly grammatical (and normal) examples of British English.
My reference to ‘baby talk’ about the sentence: I got a new car was in line with the child saying about his new sibling: I got a baby brother. This doesn’t mean as in your examples ‘acquired’ but ‘I am in possession of’.