In order to explain the cause of action, adverb clause of reason is used before or after the main clause in the sentence. Adverb clause describing reason is usually introduced with the help of subordinating conjunctions such as– because, since, for, as, that, etc.
Subordinating conjunctions for reason or cause
Here are some important subordinating conjunctions used to introduce adverb clause of reason or cause.
•Because — for strongest cause
•Since — for weaker cause
•For — for weakest cause
•As — for known cause
•That — for general cause
Because — strongest cause
“Because” subordinator is widely used for strongest cause compare to other subordinators of reason. Besides, “Because of” is used as a prepositional phrase. Following is the basic structure of clause of reason.
•Main clause + clause of reason
•Clause of reason + comma + main clause
Some useful examples of “Because”
•He had failed to pass this exam because he wasted important time in last month.
•He has become too heavy because he completely neglected exercise.
•Because he was playing since morning, he is feeling exhausted.
•Because the water reservoirs were dried out in summer, the animals began to migrate in the human settlements.
•Because the use of chemical fertilizers have grown many fold in the recent times, we are loosing our precious soil resources rapidly.
Since — for weaker cause
Unlike because, “Since” is used for known weaker cause. Apart from this, it is also used as preposition and adverb.
Examples for clarity
•Since he was in the hospital, we collectively managed his office work.
•Everyone only support her since she is so friendly and helpful.
•Since they have planted a lot of trees, our organization is going to select him for next award.
•No one can force me since I have already completed my work on time.
For — to express weakest cause
•It is rarely used subordinator for weakest cause.
•For we were in the forest, we had decided to visit some tribal people.
•We went immediately for help for we were the active members of that NGO.
Subordinating conjunctions – As and that
•As it is too expensive, we will wait for Christmas offer.
•We are going to swim now as it is too hot and dry.
•As it is cloudy sky, the fate of match looks uncertain.
•We are confident now that our key player is fit.
•They are so angry that she is too late.
Generally, adverb clause describing reason is used in the cause effect relationship.