260810_성문기본개념 6회차_접속사

Main ideas / lessons conveyed

1) Conditional tenses (past, past perfect, and mixed conditionals)

The instructor repeatedly emphasizes identifying which conditional type is being used by looking at the verb forms that appear after if (or equivalent condition markers).

Key rule patterns:

• Past conditional / hypothetical past

  • Look for past tense in the if-clause and would + base in the main clause (wording varies in subtitles, but the method stays consistent: verb tense in the if clause drives the conditional type).

• Past perfect conditional (if + had + past participle)

  • If the if-clause uses past perfect (e.g., “had + pp”), the main clause should follow the past perfect conditional structure.
• Past conditional vs past perfect conditional
  • Decide by checking whether the auxiliary/tense after if is:
    • simple past → past conditional
    • had + past participle → past perfect conditional
• Mixed conditionals
  • When clauses “mix” time reference (e.g., past in one clause but a different reference in the other), the instructor warns that you must be careful—tense conversion must follow the conditional type’s expectations.
  • “Mix” is used as an explicit diagnostic case.

2) “Indicator words” inside conditional structures

Negation and word choice matter, especially with before/without/not-type markers.

• The instructor notes cases where you may need to choose two correct answers because multiple negation-related words behave similarly.
• For reading comprehension, meaning often hinges on whether the clause refers to:
  • an event before another event, or
  • a time in relation to the main clause.

3) Grammatical correction tasks (error-finding and scoring)

The instructor runs through multiple problems where students must:

• Fix incorrect grammar
• Select incorrect sentences or circle correct/incorrect parts
• Apply tense rules consistently

4) Conjunctions lesson: types and parallel structure

A major portion teaches how to handle conjunctions and maintain parallelism.

Three main categories of conjunctions (as taught)

• Coordinating conjunctions
  • Connect grammatically equal units (words/phrases/clauses depending on the conjunction).
• Correlative conjunctions
  • Must appear as paired forms, e.g.:
    • “not only … but also …”
    • “either … or …”
    • “both … and …”
• Subordinate / dependent conjunctions
  • Introduce dependent clauses, including:
    • Noun clauses
    • Adverbial clauses (time, reason, condition, etc.)

Parallel structure requirement

The instructor stresses that when conjunctions connect items, the connected parts must be parallel in form (e.g., both verbs in the same structure, or both noun phrases, etc.). In “A and B” cases, wrong parallelism leads to incorrect answers.

5) Correlative conjunction patterns (with rules and variations)

The instructor provides pair templates and notes omissions/variants.

• both A and B
  • Connects two elements as a pair; both requires plural treatment (including verb-agreement implications).
• either A or B
  • Choice between two options.
• neither A nor B
  • Means neither happens/exists (negative meaning).
• not only A but also B
  • Most standard form; variations may allow omission (e.g., “also” may be omitted) and other “only + not … but …” variants may appear.
• Tense/subject-verb agreement is crucial
  • The verb agreement may follow logic based on the closest noun/grammatical determinant (highlighting B vs A in certain patterns).

6) Nominalization and noun clause conjunctions (“that”-type)

The instructor explains noun clause conjunctions as “nounization/nominalization,” where the following clause functions as a noun.

Conceptual main functions of nominalized clauses:

• Subject
• Object
• Complement

For “that”-type clauses:

• Used to express certainty/known facts versus uncertainty markers
• Major vs minor classes are contrasted based on certainty vs uncertainty.

7) Apposition and comparisons with relative pronouns

Apposition is taught as:

• Two noun phrases/expressions with the same “rank” (equivalent meaning)
• Often formatted as: a noun (abstract/common) + appositive dash + complete clause/sentence

The instructor compares apposition vs relative pronouns by checking:

• whether an abstract noun appears beforehand, and
• whether the following clause is complete vs incomplete.

Special case: “what”

• Highlighted as a relative pronoun that effectively behaves like a noun clause, able to replace the role of an antecedent.

8) Relative pronouns and completeness (subject/object missing)

Relative clauses can be incomplete if they lack a required component:

• If the missing part corresponds to subject, the clause is incomplete for that role.
• If the missing part corresponds to object, same principle.

A complete vs incomplete sentence diagnosis is used to determine which structure the item is referencing.

9) Adverbial clauses (time, reason, condition, concession) with focus on “until”

Later in the video, adverbials are taught, especially time.

Main emphasis:

• until / not until structure and inversion

Until: meaning and inversion (method)

• Meaning rule
  • until B typically indicates an action/event continues up to B, or “only after B” for certain contexts.
  • The instructor repeats the idea: A only after B has been done / A done only after B.
• Inversion rule
  • When until-type temporal clauses start, the sentence may require inversion (subject/verb order change).
  • The instructor warns that tense ordering must be handled carefully.
  • Past perfect often appears in the inversion structure when the sentence references an event that occurred before another past event.

10) Concession and “even though / as … as …” type patterns

The instructor explains concession structures (e.g., even though) where a clause can mean “even if/although,” including:

• specific adjective/adverb order rules

Also noted:

• No reflexive misuse / article omission rules are the theme for correct concession meaning (subtitles are noisy, but the structural correctness is emphasized).

11) Infinitives and infinitive tense/voice (later module)

A final major section focuses on infinitives, especially their tense forms and how to select correct forms in grammar questions.

Infinitive tense types taught (as formulas)

• Simple infinitive
  • base form (e.g., “to + verb”)
• Perfect infinitive
  • “to have + past participle” (to have pp)

The instructor teaches that:

• the infinitive tense indicates when the infinitive action happened relative to the main clause action.
• Voice matters too (active/passive semantics), tied to correct infinitive structure (e.g., to be + pp / to have been + pp concepts).

Complex vs simple sentence example usage

Students are taught to provide example sentences for:

• simple sentence examples
• complex sentence examples

The goal is correct tense matching and structure matching.

12) Review/test administration and scoring totals

The instructor grades, then asks students to:

• compute totals
• identify how many conditional sentences appear

The session ends with reminders to check totals and promises of more review tests later.

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Methodologies / step-by-step instruction lists (as presented)

A) How to identify conditional type (tense-diagnosis method)

1. Find the if-clause (or conditional equivalent).
2. Check the verb tense/form used inside the if-clause:
   • past perfect (e.g., “had + pp”) → past perfect conditional
   • simple past (e.g., “was/were + …”) → past conditional
   • mismatched time references → mixed conditional
3. Match the main clause tense/mood to the conditional type from Step 2.
4. If corrections are required:
   • rewrite the incorrect clause using the correct tense forms for that conditional type.

B) How to handle conjunction problems (parallelism method)

1. Identify which conjunction type is used:
   • coordinating, correlative, or subordinate (noun/adverbial).
2. If it connects two items (A/B):
   • ensure A and B are parallel in grammatical form (same type of unit).
3. If correlative conjunctions are used:
   • ensure the pair is complete (or allowed omission variant if explicitly used).
4. Check subject-verb agreement outcomes for patterns like:
   • not only A but also B / both A and B / either A or B / neither A nor B
5. For answer selection tasks:
   • circle incorrect sentences or correct grammatical errors as required.

C) How to handle noun clause conjunctions / nominalization

1. Recognize the noun clause conjunction (e.g., “that”-type).
2. Confirm the clause functions as a noun (subject/object/complement).
3. Choose the correct interpretation (certainty vs uncertainty logic).
4. If omission rules apply:
   • omit only when allowed (e.g., certain object omissions depend on configuration).

D) How to identify apposition vs relative pronouns

1. Check whether there is an abstract noun preceding the dash/structure (apposition likely).
2. Check whether the following clause is complete (contains required subject/object structure).
3. For “what”:
   • remember it can behave like a relative pronoun while also acting noun-clause-like.

E) How to convert imperative + “or/unless” type conditionals

1. If an imperative appears with “or” meaning “otherwise,” decide whether to use:
   • unless, or
   • if not
2. Convert the imperative into an if-clause form while keeping the meaning consistent.

F) How to apply infinitive tense selection (matching relative time)

1. Determine the relative time between the infinitive action and the main clause action.
2. Choose:
   • simple infinitive (“to + base”)
   • vs perfect infinitive (“to have + past participle”)
3. Choose voice (active/passive) to match semantics.
4. When grading/writing answers:
   • write example sentences and ensure tense consistency.

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Speakers / sources featured

• Primary speaker (instructor/teacher): the unnamed English-speaking instructor guiding the class through grammar and test problems.
• No other clearly identifiable speakers or external sources are explicitly named in the subtitles.