An infinitive is the base form of the verb.

不定是动词基本。

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

当容词后面接动词时候，通常要接动词不定。

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

但是我不接动词原哦，真可惜！

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

在 “used to” 和 “would” 后面，我们要用不带 “to” 不定。

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

这里我用了动词不定 “to call”。

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

可以看出来，shall加上主语，加上动词不定（无to）构成了这句表达。

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

“Refuse”可以接直接宾语，也可与不定动词连用。

If plus past tense verb, would plus infinitive verb.

“If”加上动词过去，“would”加上动词不定。

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

容词不定是指在句子中充当容词不定。

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

超简单！就是不带“to”不定。简单！

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

主语和不定动词，动词原。

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

在今天视频中，我们将深入探索动名词和不定迷人世界。

First things first, what are gerunds and infinitives?

首先，什么是动名词和不定？

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

但是，在这里，这个“to”不是不定一部分。

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

Let 后面跟宾语和不带 to 不定。

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

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

Remember to use the infinitive after the person.

记住在人后使用不定。

The structure is subject, let, object, infinitive.

结构是主语，let，宾语，不定。

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

它们不应该变成另一种，包括不定。

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

顺便说一句，当你拆分不定时，人们通常会用副词替代。