Phrases introduced by ‘along with’, ‘as well as’, ‘together with’, and ‘in addition to’ are parenthetical modifying clauses, not coordinating conjunctions. They do not compound the grammatical subject. The grammatical subject remains the singular ‘Commander-in-Chief’, requiring a singular verb (‘has’).

When two subjects are joined by ‘Neither… nor’ or ‘Either… or’, the verb must agree in number and person with the SUBJECT CLOSEST TO THE VERB (the proximate subject).

‘A number of’ is an idiomatic quantifier meaning ‘several / many’ and takes a PLURAL verb. In contrast, ‘The number of’ refers to the specific singular mathematical count and takes a SINGULAR verb.

Indefinite pronouns such as ‘each’, ‘every’, ‘neither’, and ‘either’ are grammatically singular when used as subjects. The prepositional phrase ‘of the newly commissioned fighter jets’ does not make the subject plural.

In inverted sentences beginning with prepositional phrases of location, the true subject comes AFTER the verb. The verb must agree with the postposed subject, not the preceding prepositional noun.

In a Type 3 past counterfactual conditional, the ‘if’-clause expresses an unreal past condition using the Past Perfect tense (had + past participle). The modal ‘would have’ is restricted exclusively to the main result clause.

When the word ‘If’ is omitted in an inverted third conditional, the auxiliary ‘Had’ is fronted before the subject. Because the condition is in the past, the consequence must also reflect past completion (‘would have been restored’).

In formal English, hypothetical or contrary-to-fact conditions in Type 2 conditionals use the subjunctive form were for all grammatical persons (I, he, she, it, they).

‘Unless’ already possesses an inherently negative meaning equivalent to ‘If… not’. Adding an auxiliary negative (‘does not’) creates an ungrammatical double negative.

This is a mixed conditional: the condition is in the past (‘yesterday’ ==> had taken), but the consequence describes a present state (‘today’). The present consequence takes ‘would + V1’, not ‘would have + V3’.

Adjectives of Latin origin ending in ‘-ior’ (superior, inferior, senior, junior, anterior, posterior, prior) take the preposition to rather than the conjunction ‘than’.

The verb ‘prefer’ expresses comparative preference and pairs with the preposition to when comparing two nouns or gerunds.

The standard English idiom for offering congratulations is ‘congratulate someone ON something’. The preposition ‘for’ is an erroneous calque from other languages.

English differentiates emotional target: one is angry with (or at) a person, but strictly angry at (or about) an inanimate action, object, or situation.

Synonymous legal verbs govern different fixed prepositions: Abide + by; Comply + with; Conform + to.

The elements following ‘not only’ and ‘but also’ must be grammatically balanced. In (A), ‘not only’ precedes the verb ‘spoke’, while ‘but also’ precedes the noun ‘Persian’. In (B), both precede matching direct object nouns.

Items in a coordinate series joined by ‘and’ must take identical grammatical forms. If the first two items are gerunds (‘drafting’, ‘supervising’), the third item must also be a gerund, not an infinitive.

You cannot compare a city’s climate to an entire geographic city! You must compare ‘climate’ to ‘climate’. The demonstrative pronoun ‘that of’ stands in for ‘the climate of’.

The correlative conjunction ‘both’ can ONLY pair with ‘and’. Pairing ‘both’ with ‘as well as’ is a serious redundancy error.

Symmetric placement requires matching elements. ‘Nor’ introduces a direct object noun (‘an explanation’). Therefore, ‘neither’ must introduce a direct object noun (‘permission’), not the verb (‘gave’).

The introductory participial phrase ‘Having finished the analytical report’ must modify the person who actually finished it. In (A), the file is placed after the comma, making it sound like the file finished the report! In (B), ‘the research officer’ correctly follows.

Verbs of command, suggestion, and necessity (mandate, decree, suggest, demand, insist) trigger the mandative subjunctive. The verb in the ‘that’-clause must appear in its base form (infinitive without ‘to’) regardless of subject number.

‘No sooner’ is a comparative adverb and must pair with ‘than’, NOT ‘when’. ‘Hardly’ and ‘Scarcely’ pair with ‘when’.

‘Between’ is a preposition. Prepositions in English MUST govern the objective case (me, him, her, us, them), NEVER the subjective case (I, he, she, we, they).

The Latin root ‘loqu / loc’ signifies ‘speech / to speak’ (e.g. eloquent, circumlocution, colloquium). The suffix ‘-ious’ forms an adjective meaning ‘full of’. Therefore, ‘loquacious’ literally means ‘full of speech’ or excessively talkative.