An adverb clause is a subordinate clause which functions as adverb in another sentence. Like an adverb, adverb clause answers to the questions such as "when?", "where?", "why?", "with what goal/result?", and "under what conditions?.
Adverb clause usually begins with subordinative conjunctions such as: after, before, until, while, because, since, as, so that, in order that, if, unless, whether, though, although, even though, where…
គួរចងចាំៈ Adverb clause ជាអនុប្រយោគដែលដើរតួនាទីជាគុណកិរិយានៅក្នុង ប្រយោគ មួយទៀត។ ដូចគ្នាទៅនឹង គុណកិរិយា វាឆ្លើយទៅនឹងសំនួរ ដែលបង្ហាញពីពេលវេលា ទីកន្លែង គោលបំណង និងលក្ខខណ្ឌ ជាដើម។ Adverb clause ផ្តើមដោយ សន្ធានស័ព្ទដូចជា after, before, until, while, because, since, as, so that, in order that, if, unless, whether, though, although, even though, where… ជាដើម។
Types and Meanings of Adverb Clauses
An adverb clause usually appears just before or just after the main clause. It shows different meanings in sentence such as time, place, condition, etc. You will some common meanings it shows and the common subordinators (in brackets) below.
CLAUSES OF TIME
It begins with subordinating conjunction like when, before, after, until, since, while, etc. For examples,Before you go, turn off the radio.
It is only six months since we left our parents.
CLAUSES OF PLACE
It begins with subordinating conjunction like where, or wherever. For examples,Put the gun where the children can't find it.
You can sit wherever you want.
CLAUSES OF MANNER
It begins with subordinating conjunction like as, as if / as though. For examples,Everything worked out as he expected.
We must behave as if everything were normal.
CLAUSES OF REASON
It begins with subordinating conjunction like because, since, or as. For examples,Because we couldn’t get the motor running, we had to row back to the dock.
Since no one else will volunteer, I'll do t he cooking.
CLAUSES OF CONCESSION
It begins with subordinating conjunction like although, though, or even though. For examples,While the large universities have many advantages, I still prefer a small college.
Although she uses only two fingers, she is a very fast typist.
CLAUSES OF CONDITION
It begins with subordinating conjunction like if, unless, etc. For examples,I'll drop in later if anything new comes up.
Unless the traffic is very bad, we should arrive by eight.
CLAUSES OF RESULT
It begins with subordinating conjunction like so... that, or such . . . that. For examples,The test was so difficult that I couldn't finish it.
It is such an expensive car that I can't afford.
CLAUSES OF PURPOSE
It begins with subordinating conjunction like so that, in order that, or lest. For examples,He studies hard so that/in order that he can get scholarship.
He studies hard lest he will not fail in the exam.
CLAUSES OF COMPARISON
It begins with subordinating conjunction like as . . . as, so . . . as, and than). For examples,Your book isn't as long as mine (is).
A turkey costs more than a chicken (does).
Do you need George any more than (you do) me?
Do you need George any more than I (do)?
It's more difficult than it seems.
Note: The clause of comparison is different from all the other types of adverb clause in two respects: (i) It is used to modify an adjective or an adverb rather than a verb. (ii) It may be elliptical; that is, some words in the clause may not be expressed (words in parentheses in the following sentences).