English Grammar Expertise play online

This app is an extraordinary learning app providing:
- 29 various grammar lessons and tests.
- more than 600 grammar questions.
- 50's free explainer videos.
- practice reviews.

Effective learning tool for native and non-native learners.
Learners can learn effectively with explainer videos for various grammar lessons.

- Grammar Lessons
- Grammar Exercises
- Exercise Review
- Idioms

Materials:
Nouns
- Proper Nouns
- Common Nouns
- Concrete Nouns
- Abstract Nouns
- Count Nouns
- Non-Count Nouns
- Count and Non-Count Nouns

Articles
- Indefinite Articles: a and an
- Definite Article: the
- Omission of Article

Quantifiers
- much, many, and several
- much of, many of, and several of
- a lot of
- a few and a little

Adjectives
- The Types of Adjectives
- The Order of Adjectives

Pronouns
- Subjective Pronouns
- Objective Pronouns
- Reflexive Pronouns
- Possessive Pronouns and Adjectives
- Demonstrative Pronouns and Adjectives

Adverbs
- Adverbs of Manner
- Adverbs of Place
- Adverbs of Time
- Adverbs of Frequency
- Adverbs of Duration

Simple Present Tense
- Active Form
- Passive Voice

Present Continuous (Progressive) Tense
- Active Form
- Passive Voice

Present Perfect Tense
- Active Form
- Passive Voice

Present Perfect Continuous Tense
- Positive Form
- Negative Form
- Interrogative Form

Simple Past Tense
- Active Form
- Passive Voice

Past Continuous (Progressive) Tense
- Active Form
- Passive Voice

Past Perfect Tense
- Active Form
- Passive Voice

Past Perfect Continuous Tense
- Positive Form
- Negative Form
- Interrogative Form

Simple Future Tense
- Active Form
- Passive Voice

Future Continuous Tense
- Positive Form
- Negative Form
- Interrogative Form

Future Perfect Tense
- Active Form
- Passive Voice

Future Perfect Continuous Tense
- Positive Form
- Negative Form
- Interrogative Form

Clause
- Main Clause
- Subordinate Clause
- Relative Clause
- Who and That
- Whom and That
- Whose
- Which and That
- Noun Clause
- A Noun Clause with Known Subject
- A Noun Clause with the State of Being
- A Noun Clause with the State of Being for Prepositional Phrase
- A Noun Clause with Unknown Subject
- A Noun Clause with That

Modal Auxiliaries
- Active Form
- Can, Could, To Be Able To
- May and Might
- Shall, Should, and Ought To
- Must and Have To

Conjunctions
- Subordinating Conjunctions
- Coordinating Conjunctions
- Correlative Conjunctions
- Conjunctive Adverbs

Conditional Sentences
- Zero Conditional Sentences (Type 0)
- First Conditional Sentences (Type 1)
- Second Conditional Sentences (Type 2)
- Third Conditional Sentences (Type 3)

Phrases
- Noun Phrases
- Verb Phrases
- Adjective Phrases
- Adverb Phrases
- Prepositional Phrases

Comparisons
- Equality
- Comparative
- Superlative
- Comparative Adjective

Question Tag
Question Tag in Appearing Auxiliary
Question Tag in Disappearing Auxiliary

Similar Word Usage
So... that ..., Such ... that ... and So that
Despite, In spite of, and Although, Even though
Because of, Due to, and Because
Used to and Be used to
A few and few
A little and little
Gerund and present participle