TOEFL grammar Archives - Advanced English Lab

Teacher explaining the difference between the prepositions to (movement) and at (location) on a classroom whiteboard with examples

Grammar

To vs At: Movement and Location Prepositions Explained

writer September 1, 2026

1. Introduction to To and At English prepositions can be challenging because small words often carry big meaning. Two of the most commonly confused prepositions…

Teacher explaining compound adjectives with hyphens and number rules on a classroom whiteboard, showing examples like well-known actor and three-day conference

Grammar

Compound Adjectives Hack: Hyphens & Numbers Made Easy

writer September 1, 2026

1. Introduction to Compound Adjectives A compound adjective is a powerful vocabulary hack that lets you turn two or three separate ideas into one precise, professional phrase….

Grammar

Enough Grammar: Before or After? Complete Guide

writer September 1, 2026

1. Introduction to “Enough” The word “enough” is one of the most commonly used words in English. It means as much or as many as you need; it…

Teacher explaining past tense diagnostic with eight common mistakes and corrections on a whiteboard

Grammar

Past Tenses Diagnostic: Fix 8 Common Mistakes

writer September 1, 2026

1. Introduction to the Past Tense Diagnostic The past tenses in English—past simple, past continuous, present perfect, and past perfect—are among the most frequently used…

Teacher explaining three rules for modal verbs on a classroom whiteboard with examples of correct and incorrect modal verb usage

Grammar

Modal Verbs: 3 Rules to Avoid Common Mistakes

writer August 31, 2026

1. Introduction to Modal Verbs Modal verbs are among the most frequently used words in English. They help us express ability, possibility, permission, obligation, advice,…

Teacher explaining the triangle method for prepositions of time at, on, and in on a whiteboard with a diagram showing specific times, days, and long periods

Grammar

At, On, In for Time: Triangle Method Explained

writer August 31, 2026

1. Introduction to Prepositions of Time The prepositions at, on, and in are among the most frequently used words in English. When talking about time, many learners find them…

Teacher explaining the past tense of the verb to be on a whiteboard with was and were examples for singular and plural subjects.

Grammar

Was and Were: Past Tense of Be Complete Guide

writer August 31, 2026

1. Introduction to Was and Were The verb “to be” is one of the most important verbs in English. It describes states, conditions, locations, and identities. In…

Teacher explaining confusing indefinite pronouns on a classroom whiteboard showing when to use singular and plural verbs with examples for most, all, none, any, and some.

Grammar

Confusing Indefinite Pronouns: Singular or Plural?

writer August 30, 2026

1. Introduction to Indefinite Pronouns Subject-verb agreement is a fundamental part of English grammar. A singular subject needs a singular verb, and a plural subject…

Teacher explaining at, on, in for place using a triangle diagram on a classroom whiteboard showing specific, medium, and large area usage

Grammar

At, On, In for Place: The Triangle Method Explained

writer August 30, 2026

1. Introduction to At, On, In for Place Prepositions of place—at, on, and in—are among the most frequently used words in English. They appear constantly in speech…

TOEFL grammar

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