In this article, Intermediate Grammar B1 learners study third conditional.

You will learn how to talk about unreal past situations and their imagined results.

The key question is: Am I imagining a different past?

In this article, Intermediate Grammar B1 learners study mixed conditionals.

You will learn how one unreal time can connect to a different unreal result time.

The key question is: Does the condition belong to the past while the result belongs to now, or the opposite?

In this article, Intermediate Grammar B1 learners study relative clauses.

In this article, Intermediate Grammar B1 learners study defining relative clauses.

You will learn how essential relative clauses identify exactly which noun you mean.

In this article, Intermediate Grammar B1 learners study non-defining relative clauses.

You will learn how essential relative clauses identify exactly which noun you mean.

The key question is: Is the relative clause necessary to identify the noun?

In this article, Intermediate Grammar B1 learners study relative pronouns: who, which, that, whose.

You will learn how who, which, that, and whose connect extra information to nouns.

The key question is: Does the relative pronoun refer to a person, thing, possession, or defining idea?

In this article, Intermediate Grammar B1 learners study English conditionals.

You will learn how to use English conditionals in clear English sentences.

In this article, Elementary Grammar A2 learners study gerunds.

You will learn how verb-ing forms act like nouns in English sentences.

In this article, Elementary Grammar A2 learners study infinitives.

You will learn how to plus base verb expresses purpose, plans, needs, and opinions.

The key question is: Does the sentence need to show purpose, intention, or a following action?

In this article, Elementary Grammar A2 learners study gerunds vs infinitives.

You will learn how to choose between verb-ing and to plus base verb after another word.