The set can be checked even when the language cannot
A certified translation for Paraguay arrives as Spanish pages that most customers cannot read a line of. That can feel like being asked to take the work on trust, and in one narrow sense it is. But the mistakes that genuinely occur are rarely mistakes of Spanish, and those are the ones you can catch yourself.
Think of it as checking a delivery rather than marking an essay. You are not judging how well the wording reads. You are making sure the right item was worked on, that the whole of it came back, and that the paperwork holding it together is complete and signed.
Spanish, and what should be plain from the outside
Paraguay works in Spanish, so a certified translation in Sunderland for Paraguay produces Spanish pages to sit with the English document. Two things about those pages are obvious whatever your Spanish: how many of them came back, and whether a signed statement is fastened to the front of them.
Counting is the useful part. Where you supplied three separate papers, three separate translations should come back, each one naming the document it answers to. A set thinner than the pile you sent in is the plainest signal available that something was left out along the way.
What the signature covers, and where it stops
The certification is the translator's certificate of accuracy, signed by a certified translator and attached to the Spanish text. It covers the wording, which is precisely the part you cannot judge, and that division is the whole point: the signature stands exactly where your own reading runs out.
No sworn standing is called for on this route, which keeps the check simple. You are looking for one name on one statement, rather than wondering whether some further mark from somewhere else ought to be sitting there as well before the set can be used.
Per-page cost and turnaround
The rate is about £25 per page, over 2–3 business days as standard, with express delivery in 24 hours. Pages are counted as the sheets that carry text, so the number of Spanish pages you receive ought to bear a sensible relation to the number of sheets you handed over.
An official Spanish translation in Sunderland is easiest to look over when the source was crisp to begin with. Sunderland Registration Service prints fresh certified copies of birth, marriage and death entries at City Hall on Plater Way, and a clean source makes a side-by-side glance much quicker.