The difference between whether and if is please, thank you

Difference Between Wether and If 1) When guiding the subject clause, whether is generally used instead of if. For example, whether the German engine was the first to fly is not clearIt is not clear whether it was German engines that were first used in aircraft.

Note In colloquial language, if can also be used for a subject clause, but it must be placed at the end of the sentence, which seems to be an object or predicative clause. 2) When guiding object clauses, whether and if can be used interchangeably in general. For example, the policeman asked if whether I had seen the accident

The police asked me if I had seen the accident. 3) If you only use whether Example 1 he asked whether I wanted to go by air or by seaHe asked me if I wanted to go by plane or by boat.

The clause contains or, emphasizing the choice, only whether should be used here) Example 2 he asked whether or not I wanted to insure my luggageHe asked me if I wanted to give luggage insurance. Example 3 bill asked whether, if i got the job, i'd move to new york

Bill asked me if I would move to New York if I got a job. (If the object clause includes an if clause, whether should be used) Example 4 We discussed whether we should go thereWe discussed whether we should go there or not.

After a verb such as discuss, only whether can be used).

1. When if or whether guides the object clause, it is often placed after the verbs ask, see, say, know and find out. In general, the two are often used interchangeably, and if is often used in colloquial language. Such as:

2. When if or whether guides the object clause, pay attention to three aspects, namely conjunctions, word order and tense. 1 If or Wether cannot be used at the same time as that or other conjunctions (adverbs), nor can they be omitted. 2 When an object clause guided by if or whether is questionable, the clause order should be declarative sentence order.

3 The object clause led by if or whether should be consistent with the tense of the main clause. That is, the main clause is in the simple present tense, and the clause uses any tense; The main clause is in the simple past tense, and the clause is in any of the past tenses. 3. The difference between IF and Whether:

1 Only whether can be used before the infinitive of the verb. 2 in whether ......or not. 3 After the preposition, only whether can be used.

4. When the object clause is placed at the beginning of the sentence to express emphasis, it can only be used whether. 5. When using if will cause ambiguity, only use whether. Ambiguity can be avoided if whether is used.

Sometimes it's interchangeable.

The main differences between whether and if are different meanings, different usages, and different emphasis.

First, the meaning is different.

1、whether

conj.Whether; In spite of; Irrespective of.

2、ifconj.If; Even though; Whenever.

n.Condition; Conceive.

Second, the usage is different.

1、whether

Whether is used as a conjunction that means "whether, is not" and leads to a noun clause or verb infinitive phrase.

Wether can also lead to a concession adverbial clause meaning "regardless, regardless", and the simple modern tense is usually used in the subordinate clause instead of the future tense.

i'm uncertain whether to go or not.

I'm not sure if I'm going or not.

2. IFIF guides conditional adverbial clauses, which can be real conditional clauses or virtual conditional clauses. If it is a true conditional clause, the predicate is in a declarative mood, indicating that the possibility is very high, and the solution of "if" and "if" is usually used in the simple present tense instead of the simple future tense; If the if clause is will, it indicates the willingness.

If the clause is a subjunctive conditional clause, the predicate verb should be used as a subjunctive mood to indicate that it is unlikely or contrary to past facts, and it should be solved as "if, if". It can refer to the past situation, as well as to the present and future situation. Refers to future situations when were to or should.

i can give you a round neckline if you prefer.

Third, the focus is different.

1、whether

When meaning "if, if", the whether clause simply indicates the facts; whether can be used in indirect interrogative sentences after the preposition; whether can be used in front of "to + verb primitive"; Wether can guide the subject and the predicative clause to quarrel.

When meaning "whether", whether is mostly used in written language, which can be used in conjunction with or or not, in addition to the object clause, it can also lead to the subject clause, the predicative clause, the copositional clause or the infinitive.

2. If means "if, if", the if clause can express hope; if cannot be used in indirect interrogative sentences after a preposition; if cannot be used in front of "to + verb form"; If cannot guide the subject or predicative clause.

When it means "whether", if is used as "whether", it is mostly used in colloquial language, leading to object clauses, and cannot be directly used in conjunction with or not.

1. The interpretation is different.

whether: whether; Slip no matter what; Irrespective of.

if: whether; If; Even though; Whenever.

2. Different usage.

whether: whether is used as a conjunction meaning "to be high, not to be", and to lead a noun clause or verb infinitive phrase.

if: if acts as a subordinate conjunction to guide the conditional adverbial clause.

Concession adverbial clause and noun clause.

3. **Different.

whether: directly derived from Old English hweer; Originally derived from the Proto-Germanic word khwatharaz, meaning one of two, whether or not.

if: Derived directly from Old English gif, imitation wax means if, if.

The general question form "yes" is guided by if or whether.

Difference and usage of if and whether:

1. If as a subordinate conjunction, it guides the conditional adverbial clause with the meaning of "if". Special attention should be paid to the conditional adverbial clause guided by if in the simple present tense and the main clause in the simple future tense, i.e., "the subject will come from the present".

if it doesn't rain tomorrow，we will go on a picnic.

If it doesn't rain tomorrow, we'll go on a picnic.

2. If whether can lead the object clause, which means "whether", and the guide word has actual meaning (whether or not) in the clause, but does not make any components, so it cannot be omitted. It is a tone of uncertainty that is transformed from a general question.

if usage. 1. If is used as a subordinate conjunction to guide conditional adverbial clauses, concession adverbial clauses and noun clauses.

2. If guides the conditional adverbial clause, which can be a real conditional clause or a virtual conditional clause.

3. If can omit be and subject in the conditional clause of if guidance.

4. The conditional clause guided by if is sometimes followed by only to strengthen its tone, indicating that the speaker is very eager for the conditions proposed by someone to be fulfilled.

5. If can guide the concession adverbial clause, as "although, even if" solution, often and even with caution.

6. If can guide the noun clause as a "whether" solution, often placed after verbs such as ask, doubt, know, learn, see, wonder, etc. It is generally used in spoken language and cannot be used at the beginning of a sentence.

1. Different definitions whether: whether: whether; In spite of; Irrespective of. if：

Whether; If; Even though; Whenever. 2. Different usage: whether is used as a conjunction, meaning "whether, is not", which can guide the noun from stupid dust sentences or infinitive phrases to verbal words.

Directly derived from the Old English hweer; Originally derived from the Proto-Germanic word khwatharaz, meaning one of two, whether or not. if: Derived directly from Old English gif, meaning if envy, assume.

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