English tenses Grammar rules, exercises + PDF worksheets.
• All English tenses - the present, past and future simple + continuous, the present perfect, past perfect and future perfect.
Modal verbs Grammar rules, exercises + PDF worksheets.
• Modal verbs can, may, must in positive and negative forms.
Passive voice Grammar rules, exercises + PDF worksheets.
• Active and passive forms of English verbs in all tenses.
Imperative sentences Grammar rules, exercises + PDF worksheets.
• The first person, the second person and the third person imperative.
Gerund and infinitive Grammar rules, exercises + PDF worksheets.
Gerunds and infinitives - PDF rules
• Verbs and expressions followed by gerunds, infinitives or both (with or without changes of meaning).
Conditional tense Grammar rules, exercises + PDF worksheets.
• The present and past conditional tense (would be, would have been).
If-conditionals Grammar rules, exercises + PDF worksheets.
• The zero, first, second, third and mixed conditional sentences.
Time clauses Grammar rules, exercises + PDF worksheets.
• Expressing future in time clauses introduced by conjunctions of time such as after, as soon as, before, whenever, while, until...
Relative clauses Grammar rules, exercises + PDF worksheets.
• Defining, non-defining and connective relative clauses (who, which, that, whose, whom).
Direct and indirect object Grammar rules, exercises + PDF worksheets.
Direct and indirect object - PDF rules
• Verb objects in English sentences.
Indirect questions Grammar rules, exercises + PDF worksheets.
Indirect questions - PDF rules
• Forms and use of direct and indirect questions.
Reported-speech Grammar rules, exercises + PDF worksheets.
• Changes of tenses, pronouns, time and place in reported statements, questions and commands.
All these materials are written for self-study learners who want to learn basic English grammar for free. They are suitable for beginners, elementary, pre-intermediate, intermediate and advanced students of English as a foreign language.