The car to to be washed.

[Vladv1]

Am I correct that " The car that should be/will be/must/can be washed is here" can be reduced to "The car to to be washed is here". or to "The car to wash is here" if we (the speaker) are doing the washing?

 

[emsr2d2]

Am I correct that "The car that should be/will be/must be/can be washed is here" can be reduced to "The car to to be washed is here" no full stop here or to "The car to wash is here" if we (the speaker) are doing the washing?

That's a very long single sentence! Let's start with the four sentences contained in your first set of quotation marks:
1. The car that should be washed is here.
2. The car that will be washed is here.
3. The car that must be washed is here.
4. The car that can be washed is here.
They're all grammatically possible although I can't really imagine anyone saying them. I suppose if I worked at a carwash, I might need to tell a colleague that the next car on the list to be washed has arrived but it's a convoluted context.

Let's go on to your reductions:
1. The car to be washed is here.
It's grammatically correct but again I can't think of a natural context for it.

2. The car to wash is here.
That's questionable. If someone said that to me, I'd probably wonder if they weren't a native English speaker.

What exactly are you trying to practise here?

 

[Vladv1]

That's a very long single sentence! Let's start with the four sentences contained in your first set of quotation marks:
1. The car that should be washed is here.
2. The car that will be washed is here.
3. The car that must be washed is here.
4. The car that can be washed is here.
They're all grammatically possible although I can't really imagine anyone saying them. I suppose if I worked at a carwash, I might need to tell a colleague that the next car on the list to be washed has arrived but it's a convoluted context.

Let's go on to your reductions:
1. The car to be washed is here.
It's grammatically correct but again I can't think of a natural context for it.

2. The car to wash is here.
That's questionable. If someone said that to me, I'd probably wonder if they weren't a native English speaker.

What exactly are you trying to practise here?

Thanks. I am trying to ascertain whether the noun+infintive (a car to drive, music to play) can contain a reduced relative clause, which would contain a modal were we to unfurl it, and I want to ascertain which modals can reduce to an infinitive.

 

[Skrej]

Am I correct that " The car that should be/will be/must/can be washed is here" can be reduced to "The car to to be washed is here". or to "The car to wash is here" if we (the speaker) are doing the washing?

See if you can't identify the typing error in that (it's not a grammar or spelling issue).

 

[jutfrank]

I am trying to ascertain whether the noun+infintive (a car to drive, music to play) can contain a reduced relative clause, which would contain a modal were we to unfurl it, and I want to ascertain which modals can reduce to an infinitive.

First of all, nothing contains anything and there's no reduction of any kind. What you're asking is something about meaning, namely whether a simple 'to'-infinitive clause can convey in itself the variety of modalities associated with the auxiliaries 'should', 'will', 'must', and 'can'. Another way of saying that is that you're asking whether 'the car that must be washed' could be equivalent in meaning to 'the car to be washed'. There is no reduction here, just two distinct constructions.

Anyway, the answer to this question is yes, there are possible contexts where there is a good amount of synonymy. Here are some examples I've just come up with:

I'm bored. Is there anything to read?
I'm bored. Is there anything I can read?

These two are closely synonymous, both expressing possibility.

That's the last one—there are no more left to do.
That's the last one—there are no more that we must still do.

These two express obligation.

I bet you she'll be the last one to die.
I bet you she'll be the last one that will die.

These express prediction.

I never know what to do in this situation.
I never know what I should do in this situation.

And these express correct action.