An infinitive is the base form of the verb.

不定式是动词基本形式。

When an adjective is followed by a verb, its form is usually a full infinitive.

当形容词后面接动词时候，通常要接动词不定式。

But I'm not followed by an infinitive, just feelings of regret!

但是不接动词原形哦，真！

After using used " to" or " would" , we use a bare infinitive verb.

在 “used to” 和 “would” 后面，们要不带 “to” 不定式。

And here I have " to call" in the infinitive.

这里动词不定式 “to call”。

So 'shall' plus the subject, plus the base infinitive of the verb.

以看出来，shall加上主语，加上动词不定式（无to）构成这句表达。

Refuse can take a direct object or it can be used with an infinitive verb.

“Refuse”以接直接宾语，也与不定式形式动词连。

If plus past tense verb, would plus infinitive verb.

“If”加上动词过去式，“would”加上动词不定式。

ADJECTUVAL INFINITIVES are infinitives that act like adjectives in a sentence.

形容词不定式是指在句子中充当形容词不定式。

Super easy! Just use the infinitive without " to" . Easy!

超简单！就是不带“to”不定式。简单！

The subject and the verb in the infinitive, the original verb form.

主语和不定式动词，动词原形。

In today's video, we will delve into the fascinating world of gerunds and infinitives.

在今天视频中，们将深入探索动名词和不定式迷人世界。

First things first, what are gerunds and infinitives?

首先，什么是动名词和不定式？

But, here, this " to" is not part of the infinitive.

但是，在这里，这个“to”不是不定式一部分。

" Let" is followed by an object and an infinitive without " to" .

Let 后面跟宾语和不带 to 不定式。

So infinitives are the two-word forms of verbs like to run, to laugh, to play.

不定式指是由这样两个词组成形式，如to run（跑），to laugh（笑），to play（玩）。

Remember to use the infinitive after the person.

记住在人后使不定式。

The structure is subject, let, object, infinitive.

结构是主语，let，宾语，不定式。

They should never be conjugated into another form, including the infinitive.

它们不应该变成另一种形式，包括不定式。

And, by the way, it is typically adverbs that people oppose when you're splitting infinitives.

顺便说一句，当你拆分不定式时，人们通常会副词替代。