A mistake I hear frequently is illustrated by this sentence: "There was, three mistakes in his report." This is an. inverted type of sentence, in which the verb precedes the subject. The mistake of using "was," the singular form of the verb, is caused by the failure of the speaker, less often the writer, to think ahead to the plural subject.
"There," as an expletive or anticipative subject, may introduce either a singular or a plural subject and verb. To avoid this disagreement of subject and verb, the speaker or writer should look ahead to the subject, and if plural, have the plural form of the verb precede the subject. "There were three mistakes in his report."
Phrases and clauses giving a reason often lead to awkward sentence construction. "The reason for his failure is because he—" The correct English idiom requires "that" instead of "because." "The reason for his failure is that he put in too little time." The subject of the sentence, "reason," is a noun, and it should be followed by a noun construction in the predicate. The conjunction "that" properly introduces a noun clause; "because" may introduce only an adverbial clause. Other examples: "The reason I consider this a reliable report is that he gave much time to its preparation." "The reason he was promoted was that he gave attention to important details."
The reason may be given in a simple statement of fact, using the "because" clause. "He failed because he put in too little time." "I consider this a reliable report because he gave much time to its preparation." "He was promoted because he gave attention to important details." In these last examples the "because" clause modifies the main verb in the sentence, "failed," "consider," "was promoted," respectively.
"Due to" and "on account of" sometimes result in wordiness. Do not say, "The reason for his failure is on account of (or due to) his carelessness." The reason is his carelessness, not on account of it, or due to it. "The reason for his failure is his carelessness." "Due to its strong construction, the box did not break when it fell." Better: "Because it was strongly made, the box did not break when it fell."
South Lancaster, Mass.