[Grammar] present perfect and past perfect relative reduction

[adrenalinman]

The man who is standing at the corner is the manager
The man standing at the corner is the manager

The kittens which were whining like a baby were fed by some kids on the street
The kittens whining like a baby were fed by some kids on the street

The reductions above are correct.The reductions below are also correct?

The man who has been standing at the corner for about half an hour is the manager
The man standing at the corner for about half an hour is the manager

The kittens which had been whining for about half an hour like a baby were fed by some kids on the street
The kittens whining for about half an hour like a baby were fed by some kids on the street

 

[jutfrank]

The man who is standing at the corner is the manager
The man standing at the corner is the manager

Yes, this is fine. A good example of this kind of reduction.

The kittens which were whining like a baby were fed by some kids on the street
The kittens whining like a baby were fed by some kids on the street

The reductions above are correct.

This one is not good. The first sentence doesn't sound good. Is the relative clause meant to be defining/restrictive or non-defining/non-restrictive? It reads like it is non-defining but does not include the appropriate commas. And obviously you mean whining like babies, plural. A bad example to use as a model.

The reductions below are also correct?

The man who has been standing at the corner for about half an hour is the manager
The man standing at the corner for about half an hour is the manager

This is just about okay, yes.

The kittens which had been whining for about half an hour like a baby were fed by some kids on the street
The kittens whining for about half an hour like a baby were fed by some kids on the street

Again, this is not good. It's even worse than before.

Don't try to force just anything into a reduction without a good reason. And if you do want to practice reducing in this way, then make sure your original sentences are correct, clear and intelligible, and make sure they include defining/restrictive relative clauses, as with your first example sentence here.

 

[emsr2d2]

Every sentence is incorrect - none of them ends with a closing punctuation mark.

 

[adrenalinman]

The man who is standing at the corner is the manager.
The man standing at the corner is the manager.

The kittens which were playing in the street are my neighbour's.
The kittens playing in the street are my neighbour's.

The man who has been standing at the corner for about half an hour is the manager.
The man standing at the corner for about half an hour is the manager.

The kittens which had been playing in the street for about half an hour were too tired to follow their owner.
The kittens playing in the street for about half an hour were too tired to follow their owner.

Thank you for your former answers.I have made some changes with the help of your replies.Are these four sentences above correct?Do they sound good?

 

[adrenalinman]

Thank you very much for your detailed answer.

The man who is standing at the corner is the manager.
The man standing at the corner is the manager.

The kittens which were playing in the street are my neighbour's.
The kittens playing in the street are my neighbour's.

The man who has been standing at the corner for about half an hour is the manager.
The man standing at the corner for about half an hour is the manager.

The kittens which had been playing in the street for about half an hour were too tired to follow their owner.
The kittens playing in the street for about half an hour were too tired to follow their owner.

I have made some changes with the help of your replies.Are these four sentences above correct?Do they sound good?

 

[jutfrank]

The first two are fine now.
The third I think you can get away with.
The fourth I don't think works well. It's a bit too long and doesn't sound natural as a reduction of a defining relative clause. It would sound okay if it were

The kittens, which had been playing in the street for half an hour, were too tired to follow their owner.

but then it would not be reducible in the way that you are attempting.

 

[adrenalinman]

I get your point.I am just looking for a good example of the reduction of past perfect continuous

 

[jutfrank]

I get your point.I am just looking for a good example of the reduction of past perfect continuous

I'm not confident that you'll find one.

(Don't forget to put spaces between sentences and a punctuation mark after every sentence.)

 

[GoesStation]

I get your point.(missing space) I am just looking for a good example of the reduction of past perfect continuous (missing punctuation)

Every sentence has to end with appropriate punctuation. Every period ("full stop" in BrE) has to be followed by a space.