1. Conjugation |
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Affirmative |
Negative |
Interrogative |
I have worked |
I have not worked |
Have I worked? |
have + infinitive+ed |
have + not + infinitive+ed |
have + personal pronoun + inf+ed |
Contracted forms: have = 've have not = haven't |
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2. Spelling |
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General rule: infinitive without 'to' + ED Verbs ending in E or IE: infinitive without 'to' + D Verbs ending in Y, preceded by a consonant: the Y changes into IED Verbs ending in L, preceded by a short vowel: the L is doubled + ED Verbs ending in IC: the C is followed by K + ED Verbs of one syllable, ending in a single consonant, preceded by a short vowel: |