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Collins Portuguese Dictionary and Grammar
  • An up-to-date European and Brazilian Portuguese dictionary and user-friendly grammar guide. The ‘key word’ features, cultural notes and an easy-to-use grammar section make this the ideal study tool for intermediate learners.
  • Contants 85,000 references and 109,000 translations to help those learning Brazilian and European Portuguese.
  • ∙ This first edition offers extensive and relevant coverage of today's English and Portuguese, with thousands of phrases and examples guiding the user to the most appropriate translation.
  • ∙ Handy grammar guides to both Portuguese and English help users with the most important points – the perfect complement to the dictionary.
  • ∙ The clear typography gives the text a contemporary feel, and along with the alphabet tabs, ensures that users find the information they need quickly and easily.
  • ∙ Brazilian Portuguese with European Portuguese variants and both UK and US English shown.




anular; invalidar

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ˈnʌlɪfaɪVerbanular; invalidar

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Word forms


Basic forms
Present Participle (Participle I)nullifying
Past Participle (Participle II)nullified
Present Indefinite, Active Voice
I nullifywe nullify
you nullifyyou nullify
he/she/it nullifiesthey nullify
Present Continuous, Active Voice
I am nullifyingwe are nullifying
you are nullifyingyou are nullifying
he/she/it is nullifyingthey are nullifying
Present Perfect, Active Voice
I have nullifiedwe have nullified
you have nullifiedyou have nullified
he/she/it has nullifiedthey have nullified
Present Perfect Continuous, Active Voice
I have been nullifyingwe have been nullifying
you have been nullifyingyou have been nullifying
he/she/it has been nullifyingthey have been nullifying
Past Indefinite, Active Voice
I nullifiedwe nullified
you nullifiedyou nullified
he/she/it nullifiedthey nullified
Past Continuous, Active Voice
I was nullifyingwe were nullifying
you were nullifyingyou were nullifying
he/she/it was nullifyingthey were nullifying
Past Perfect, Active Voice
I had nullifiedwe had nullified
you had nullifiedyou had nullified
he/she/it had nullifiedthey had nullified
Past Perfect Continuous, Active Voice
I had been nullifyingwe had been nullifying
you had been nullifyingyou had been nullifying
he/she/it had been nullifyingthey had been nullifying
Future Indefinite, Active Voice
I shall/will nullifywe shall/will nullify
you will nullifyyou will nullify
he/she/it will nullifythey will nullify
Future Continuous, Active Voice
I shall/will be nullifyingwe shall/will be nullifying
you will be nullifyingyou will be nullifying
he/she/it will be nullifyingthey will be nullifying
Future Perfect, Active Voice
I shall/will have nullifiedwe shall/will have nullified
you will have nullifiedyou will have nullified
he/she/it will have nullifiedthey will have nullified
Future Perfect Continuous, Active Voice
I shall/will have been nullifyingwe shall/will have been nullifying
you will have been nullifyingyou will have been nullifying
he/she/it will have been nullifyingthey will have been nullifying
Future in the Past Indefinite, Active Voice
I should/would nullifywe should/would nullify
you would nullifyyou would nullify
he/she/it would nullifythey would nullify
Future in the Past Continuous, Active Voice
I should/would be nullifyingwe should/would be nullifying
you would be nullifyingyou would be nullifying
he/she/it would be nullifyingthey would be nullifying
Future in the Past Perfect, Active Voice
I should/would have nullifiedwe should/would have nullified
you would have nullifiedyou would have nullified
he/she/it would have nullifiedthey would have nullified
Future in the Past Perfect Continuous, Active Voice
I should/would have been nullifyingwe should/would have been nullifying
you would have been nullifyingyou would have been nullifying
he/she/it would have been nullifyingthey would have been nullifying
Present Indefinite, Passive Voice
I am nullifiedwe are nullified
you are nullifiedyou are nullified
he/she/it is nullifiedthey are nullified
Present Continuous, Passive Voice
I am being nullifiedwe are being nullified
you are being nullifiedyou are being nullified
he/she/it is being nullifiedthey are being nullified
Present Perfect, Passive Voice
I have been nullifiedwe have been nullified
you have been nullifiedyou have been nullified
he/she/it has been nullifiedthey have been nullified
Past Indefinite, Passive Voice
I was nullifiedwe were nullified
you were nullifiedyou were nullified
he/she/it was nullifiedthey were nullified
Past Continuous, Passive Voice
I was being nullifiedwe were being nullified
you were being nullifiedyou were being nullified
he/she/it was being nullifiedthey were being nullified
Past Perfect, Passive Voice
I had been nullifiedwe had been nullified
you had been nullifiedyou had been nullified
he/she/it had been nullifiedthey had been nullified
Future Indefinite, Passive Voice
I shall/will be nullifiedwe shall/will be nullified
you will be nullifiedyou will be nullified
he/she/it will be nullifiedthey will be nullified
Future Perfect, Passive Voice
I shall/will have been nullifiedwe shall/will have been nullified
you will have been nullifiedyou will have been nullified
he/she/it will have been nullifiedthey will have been nullified