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Grammar Alien is the game to learn English grammar.

Use a team of monsters to fight the evil aliens using grammar. It features incredible graphics and animations in a space theme. It contains over 100 different types of quizzes. The app will track your progress and adapt to your level.

Learn nouns, pronouns, adjectives, prepositions, possessives, linking verbs, present simple, future perfect, past continuous, spelling, object complements, indirect objects, advance vocabulary, verbals, types of sentences, etc.

• Campaign mode with over 300 different levels.
• Rating system that adapts the difficulty of the game to your proficiency.
• More than 100 different grammar topics with thousands of questions.
• Interactive just-in-time tutorials to learn.
• Each card has its skill and passive skill.
• Evolve cards to unlock hidden powers.
• English Score calculated from your proficiency in campaign and learning mode.
• Daily challenge to test your knowledge and team and obtain unique rewards to power up your monsters.
• Rank against other players by collecting commander points after each played match.

List of all questions available in GramMars Wars.
Noun Category:
• Noun
• Concrete Noun
• Abstract Noun
• Common Noun
• Proper Noun
• Possessive Noun
• Compound Noun
• Collective Noun
• Plural Noun
• Noun Classification
• Irregular Plural Nouns
Pronoun Category:
• Pronoun
• Subject Pronoun
• Object Pronoun
• Possessive Pronoun
• Reflexive Pronoun
• Interrogative Pronoun
• Demonstrative Pronoun
• Relative Pronoun
• Indefinite Pronoun
• Pronoun Agreement
• Interrogative Pronoun Agreement
• Relative Agreement
• Pronoun Classification
Verb Category:
• Verb
• Physical Verb
• Abstract Verb
• Linking Verb
• Helping Verb
• Base Form Verb
• Past Form Verb
• Modal Verb
• Irregular Verb
• Transitive Verb
• Intransitive Verbs
• Action vs. Linking Verbs
• Verbs Agreement
• Verb Spelling
• Linking Verb in Sentence
• Agreement Quantities
• Verbal vs. Verb
• Pick Verbal
Modifiers Category:
• Adjective
• Article
• Preposition
• Adverb
• Conjunction
• Compound Adjective
• Proper Adjective
• Adjectives in Sentence
• Adverbs in Sentence
• Conjunctive Adverb
• Interrogative Adverb
• Possessive Adjective
• Order of Adjective
• Prepositional Phrases
• Subordinating Conjunctions
• Conjunctions in Sentence
• Troublesome Prepositions
• Types of Adjectives
• Irregular Adjective
Tenses Category:
• Present Simple
• Past Simple
• Future Simple
• Present Continuous
• Past Continuous
• Future Continuous
• Present Perfect
• Past Perfect
• Future Perfect
• Present Perfect Continuous
• Past Perfect Continous
• Present Perfect Continous
• Pick Tense
Miscellaneous Category:
• Basic Vocabulary
• Intermediate Vocabulary
• Comparative Positive
• Comparative Negative
• Superlative Positive
• Superlative Negative
• Passive
• Advanced Vocabulary
Sentences Category:
• Subject & Verb Phrase
• Direct & Indirect Object
• Infinitives
• Participles in Sentence
• Subject Complement
• Object Complement
• Adjective Clause
• Adverb Clause
• Noun Clause
• Identify Clause
• Dependent vs. Independent Clause
• Identify Complements
• Types of Sentences