Is this normal speech behaviour for 2.5yo?

[AnybodysDude]

DS is 2.5 and has only recently begun speaking I sentences (past two months).

He is quite an intense child anyway so this behaviour has got me slightly concerned, so I was wondering if anyone has had similar experiences?

He is extremely repetitive. He will tell you something (for example, a toy was stuck so he was telling me "mummy stuck") and just repeat the phrase over and over and over until you say it back to him. If you just say "oh no" or "let me help" or "ok" or whatever, he will just keep saying it. He will literally only stop when I repeat the phrase back to him.

It's not something he only does occasionally, he does it with every single phrase, every time. It is driving me slightly crazy but I can deal with it, just want to know if it's concerning at all?

I don't know if it is concerning, but I know that what you do is repeat the phrase, make a complete sentence and then move it on

Mummy stuck
yes the car is stuck in the box isn't it? Do you want me to get it out?

If necessary simplify and repeat, but try and keep the whole sentence,
so don't say - toy stuck?
But say- yes the toy's stuck (simplified from first example)

It is not uncommon for little kids to need the repeated phrase to know you have understood.

Ah yes, sorry I should have clarified but that's what I do - he wont stop until he hears me use the phrase in the sentence. So for "mummy stuck" I would say "oh you're telling mummy it's stuck?" And he will say yes and move on.

Its just exhausting because it is so constant, he doesn't stop talking (which is fantastic I know because a few months back he was hardly talking at all) but it means I cant ever just sit and read or crack on with housework or anything because he needs my attention constantly to be talking back to him, and if I try to do anything else he just ramps it up a few gears. Which I know it basically parenting in a nutshell! But I guess I'm just struggling.

My DD did this. I think it's normal and we often reenforce it without realising by repeating what they say to help them learn words & phrases
DD now 3.5 and doesn't do it anymore, but does need recognition of anything she says and often repeats it until she gets it
I wouldn't worry. Has she had her 2.5y health visitor check?

My daughter is will be 3 in August and she does that. She’ll repeat the same phrase over and over till I respond in the way she wants me to. Mummy, there’s s big Spider there. Big spider there. Mummy, Big spider, Mummy, mummy, big spider. Big spider mummy... and so on..
My eldest did the same thing as a child. It’s fairly common I believe.