先行詞がthis,that,these,thoseの場合はwhichを用いるのが普通です。の英語

When the antecedent is this, that, these or those it is usual to use 'which'.

the prepositional phrase here is used adverbially

a pronoun (as `that' or `which' or `who') that introduces a relative clause referring to some antecedent

I don't really understand how to use prepositions.

The verb 'help' takes to-infinitives and bare infinitives but bare infinitives are said to be the most common in casual text; as also used in this example sentence.

of or relating to or formed with a preposition

It is difficult to use the prepositions properly.

This verb is normally used only in the third person.

However, the preposition+relative pronoun (which) part becomes a relative adverb (where).

In a progressive tense sentence it becomes the -ing form verb, that is the present participle.

the voice used to indicate that the grammatical subject of the verb is the recipient (not the source) of the action denoted by the verb

In English the verb precedes the object.

You can omit the preposition in this phrase.

What preposition follows [comes after] this verb?

In English, the use of prepositions is hard to learn.

a quantifier that can be used with count nouns and is often preceded by `as' or `too' or `so' or `that'

a quantifier that can be used with count nouns and is often preceded by `a'

A sentence normally has a subject and a verb.

'needless to say' is often introduced as an idiomatic expression in the infinitive.

'Needless to say' is often used as an idiomatic expression in the infinitive.

Most adverbs are formed by adding“‐ly"to the adjectival form.

an interrogative adverb

of grammar, {the condition of words agreeing in meaning and tense}

It is difficult to use prepositions correctly.

a phrase beginning with a preposition

This sentence is in the present perfect. 'have' is not a verb, but an auxiliary verb.

a prepositional phrase

I want to become able to use prepositions correctly.

There is a perspective in the use of prepositions.

The following verbs only take the to-infinitive as their object.