Leslie Linguo

ESL Grammar Course

...to help you in your conversations with Leslie Linguo
Verb Forms
English verbs have very few forms. Most verbs are REGULAR and have four forms; the base form (infinitive), the third person singular, the gerund and the past simple or participle.

It is easy to change a verb's form because they all change in the same way. But some important verbs are IRREGULAR, and we make their forms in different ways. Only the verb TO BE, has more than five forms.

The base form of the verb, or the infinitive, is the form of the verb which we can find in the dictionary.
Examples include WORK, HURRY, PLAY, DO, LIVE, HAVE or CUT.

The third person singular form of the verb is used in the present simple with HE, SHE or IT.

To form the third person singular, all you need to do is add an -S to the base form of the verb.
Examples include WORKS, PLAYS, LIVES or CUTS.

If the base form of the verb ends with -SH, -CH, -ZZ, -SS or -X then we need to add -ES. Sometimes we also do this when the base form of the verb ends in -O.
Examples include CRASHES, WASHES, TEACHES, WATCHES, BUZZES, GUESSES, PASSES, FIXES, DOES or GOES.

If the base form of the verb ends in "VOWEL - Y" then we just add an -S (as in PLAYS) but when it ends in "CONSONANT - Y" then we have to turn the Y into an I and add -ES.
Examples include HURRIES (hurry), CARRIES (carry), CRIES (cry), FLIES (fly) or WORRIES (worry).

The verb TO BE and TO HAVE are irregular (IS and HAS).

The GERUND is formed by adding -ING to the base form of the verb.
Examples include WORKING, HURRYING, PLAYING or DOING.

If the base form of the verb ends in "CONSONANT - E" then we need to erase the -E.
Examples include LIVING, HAVING, COMING, DECIDING, GIVING, HOPING, LOSING, MAKING or WRITING.

If the base form of the verb ends in "CONSONANT - VOWEL - CONSONANT" then we need to double the last consonant.
Examples include CUTTING, GETTING, PREFERRING, PUTTING, RUNNING, STOPPING or WINNING.

The past simple and participle forms of the verb are the same in regular verbs, and they are formed by adding -ED to the base form of the verb.
Examples include WORKED or PLAYED.

If the base form of the verb already ends in -E then we just add -D, as in LIVED (live).

If the base form of the verb ends in "VOWEL - Y" then we just add an -ED (as in PLAYED) but when it ends in "CONSONANT - Y" then we have to turn the Y into an I and add -ED.
Examples include HURRIED (hurry), CARRIED (carry), CRIED (cry) or WORRIED (worry).

If you remember, this is the same rule that we applied to the third person singular (hurries, carries, cries and worries).

Finally, in English irregular verbs are irregular because in the past simple or in the participle they DO NOT end in -ED.

There are not a lot of irregular verbs, but they are the most common verbs in English.

Contents
The Basic Sentence
Unit 1: The Basic Sentence
Unit 2: The Subject
Unit 3: The Verb
Unit 4: Subject and Verb
Unit 5: Negative Sentences
Unit 6: Short Forms
Unit 7: Word Order
Questions
Unit 8: Question Words
Unit 9: Making Questions
Unit 10: Subject Questions
Unit 11: Short Answers
Unit 12: Question Tags
Unit 13: Indirect Questions
Verbs
Unit 14: Verb Forms
Unit 15: Using Verb Forms
Unit 16: The Verb to Be
Unit 17: Auxiliary Verbs
Unit 18: The Imperative
Unit 19: Present Simple Formation
Unit 20: Using the Present Simple
Unit 21: The Past Simple
Unit 22: The Present Continuous
Unit 23: The Past Continuous
Unit 24: Present Perfect Formation
Unit 25: Using the Present Perfect
Unit 26: The Past Perfect
Unit 27: Modal Verbs
Unit 28: The modal verb CAN
Unit 29: The modal verb COULD
Unit 30: The modal verbs MAY and MIGHT
Unit 31: The modal verbs WILL and SHALL
Unit 32: The modal verb WOULD
Unit 33: The modal verbs MUST and SHOULD
Unit 34: HAVE TO, NEED TO and NEEDN'T
Unit 35: Necessity and Advice
Unit 36: BE ABLE, OUGHT, HAVE GOT TO and HAD BETTER
Unit 37: GOING TO
Unit 38: USED TO
Unit 39: Verbs and Present Time
Unit 40: Verbs and Past Time
Unit 41: Verbs and Future Time
The Passive
Unit 42: Passive Sentences
Unit 43: Passive Verb Formations
Unit 44: Using the Passive
The Noun Phrase
Unit 45: Nouns and Noun Phrases
Unit 46: Plurals of Unit Nouns
Unit 47: Mass Nouns
Unit 48: Proper Nouns and Verbal Nouns
Unit 49: Genetive
Unit 50: Personal Pronouns
Unit 51: A, AN, SOME and ANY
Unit 52: THE
Unit 53: Nouns without A or THE
Unit 54: The Correct Article
Unit 55: THIS, THAT, THESE and THOSE
Unit 56: Mass and Unit in Sentences
Unit 57: Quantity
Unit 58: BOTH, EITHER and NEITHER
Unit 59: ONE
Unit 60: Relative Clauses
Types of Sentences
Unit 61: Empty Subjects
Unit 62: Simple Sentence Types
Unit 63: Complex Sentence Types
Adjectives and Adverbs
Unit 64: Adjectives and Adverbs
Unit 65: Position of Adjectives
Unit 66: Position of Adverbs
Unit 67: Some Important Adverbs
Comparison
Unit 68: Forms for Comparison
Unit 69: Comparing Two
Unit 70: Comparing Three or More
When?
Unit 71: Adverbs of Time
Unit 72: Prepositions of time
Unit 73: How Often?
Prepositions
Unit 74: In the World
Unit 75: In a Town
Unit 76: Outdoors
Unit 77: Indoors
Unit 78: In a Room
Unit 79: Objects and People
How and Why?
Unit 80: How?
Unit 81: Purpose and Use
Unit 82: Reason and Consequence
Connecting Ideas
Unit 83: Similar Ideas
Unit 84: Opposite Ideas
Unit 85: Sequence of Events
Unit 86: Conditions