Learn English – Meaning of “I have got…”

In English you need an article before a noun except when the noun is already preceded by a number or certain other words that identify quantity, or when it is a proper noun, i.e. the name of a unique thing.

So, "I have a dog." (article needed) "I have two dogs." (no article needed -- number) "I have several dogs." (no article -- "several" works like a number) "I have Rover." (no article needed, Rover is the proper name of a specific dog)

The case you give is potentially confusing because "Playstation" may look like it's a proper name. But it isn't, because it doesn't identify a unique object. There are many Playstations out there. So the correct usage is, "I have a Playstation."

If you gave names to each of your video game consoles and you like to call this one "Playstation Zebra" [subtle cinematic allusion for old people], then the correct usage would be, "I am using Playstation Zebra". You would not include an article because Playstation Zebra is a proper name.

Maybe it helps clarify to point out: if you own a Nintendo game console, you would say, "I own a Nintendo", because it's one of many. But if you bought the company, you would say, "I own Nintendo", because there is only one Nintendo company, so it's a proper name.

Side note: The fact that there may be more than one of something with the same proper name doesn't make it not a proper name if you are using it to refer to an individual and the common name is a coincidence. Like if you had a dog named Rover, you would say, "I took Rover for a walk" -- no article -- even though there may be other dogs named Rover. You are not considering your dog to be a member of the class of Rovers, rather, he is an individual who is named Rover.

To answer the original question, it's Present tense, and the verb construction is Perfect. Together they're often called "Present Perfect", which is a tense in Latin. but only a construction in English.

Yes, have got is an idiom; but that explains nothing except its irregularity, of course. And it's a different idiom in UK English than it is in American English, where it contrasts with have gotten. Like most idioms, where it came from is a long tortuous story.

Get means come to be or come to have, as in

• He got tired. ~ He became tired.

or

• He got his orders. ~ He received his orders.

(I've always been bemused that in German the verb bekommen means receive but not become.)

In the case of have, especially, if one comments on the acquisition of something, the implicature is that one still has it -- otherwise, one would say something different. So the present perfect of get naturally implicates the present of "have", leading to the equivalence of have got and have.

The Present Perfect construction uses the auxiliary verb have/has, plus the past participle of the matrix verb:

• I have/He has gone.

The past participle of get is got or gotten in the US; UK mileage may vary. There is a principled distinction between the two, since get -- as the inchoative form of both be and have -- is itself an auxiliary, and got has come to have its own usages in American English, leaving the simple Past Participle slot to be filled by gotten.

As McCawley points out, one of the functions of the Perfect is to report past actions still relevant in the present; thus,

• I've got a cold

reports a past event (catching the cold) which is still relevant (having the cold), and, since pragmatically what we're interested in is the present state, I've got a cold is used more often to warn people to duck when I sneeze than to comment on the events of the past week.

But wait – there's more. Both be and have are already auxiliary verbs, and are used in many constructions, like Passive or Perfect. Since get can implicate be and have in some cases, it's been generalized to substitute in others, where their use is grammatical instead of meaningful, like the so-called Get-Passive

• He got arrested. ~ He was arrested. = s.b. arrested him.

or in the periphrastic modal have to meaning must

• He's got to go. ~ He has to go. = He must go.

(frequently spelled gotta, because the /v/ or /z/ in /ðevgaɾə/ /hizgaɾə/ is usually inaudible)

or simply, wherever one might use have

• I got a new DVD. ~ I have a new DVD.

Quite frequently children generalize this equivalence to produce sentences like

• He gots a new ball.

in effect, inventing a new verb because the old one has worn out.

Got all that?