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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.





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Word forms


Basic forms
Present Participle (Participle I)unbuttoning
Past Participle (Participle II)unbuttoned
Present Indefinite, Active Voice
I unbuttonwe unbutton
you unbuttonyou unbutton
he/she/it unbuttonsthey unbutton
Present Continuous, Active Voice
I am unbuttoningwe are unbuttoning
you are unbuttoningyou are unbuttoning
he/she/it is unbuttoningthey are unbuttoning
Present Perfect, Active Voice
I have unbuttonedwe have unbuttoned
you have unbuttonedyou have unbuttoned
he/she/it has unbuttonedthey have unbuttoned
Present Perfect Continuous, Active Voice
I have been unbuttoningwe have been unbuttoning
you have been unbuttoningyou have been unbuttoning
he/she/it has been unbuttoningthey have been unbuttoning
Past Indefinite, Active Voice
I unbuttonedwe unbuttoned
you unbuttonedyou unbuttoned
he/she/it unbuttonedthey unbuttoned
Past Continuous, Active Voice
I was unbuttoningwe were unbuttoning
you were unbuttoningyou were unbuttoning
he/she/it was unbuttoningthey were unbuttoning
Past Perfect, Active Voice
I had unbuttonedwe had unbuttoned
you had unbuttonedyou had unbuttoned
he/she/it had unbuttonedthey had unbuttoned
Past Perfect Continuous, Active Voice
I had been unbuttoningwe had been unbuttoning
you had been unbuttoningyou had been unbuttoning
he/she/it had been unbuttoningthey had been unbuttoning
Future Indefinite, Active Voice
I shall/will unbuttonwe shall/will unbutton
you will unbuttonyou will unbutton
he/she/it will unbuttonthey will unbutton
Future Continuous, Active Voice
I shall/will be unbuttoningwe shall/will be unbuttoning
you will be unbuttoningyou will be unbuttoning
he/she/it will be unbuttoningthey will be unbuttoning
Future Perfect, Active Voice
I shall/will have unbuttonedwe shall/will have unbuttoned
you will have unbuttonedyou will have unbuttoned
he/she/it will have unbuttonedthey will have unbuttoned
Future Perfect Continuous, Active Voice
I shall/will have been unbuttoningwe shall/will have been unbuttoning
you will have been unbuttoningyou will have been unbuttoning
he/she/it will have been unbuttoningthey will have been unbuttoning
Future in the Past Indefinite, Active Voice
I should/would unbuttonwe should/would unbutton
you would unbuttonyou would unbutton
he/she/it would unbuttonthey would unbutton
Future in the Past Continuous, Active Voice
I should/would be unbuttoningwe should/would be unbuttoning
you would be unbuttoningyou would be unbuttoning
he/she/it would be unbuttoningthey would be unbuttoning
Future in the Past Perfect, Active Voice
I should/would have unbuttonedwe should/would have unbuttoned
you would have unbuttonedyou would have unbuttoned
he/she/it would have unbuttonedthey would have unbuttoned
Future in the Past Perfect Continuous, Active Voice
I should/would have been unbuttoningwe should/would have been unbuttoning
you would have been unbuttoningyou would have been unbuttoning
he/she/it would have been unbuttoningthey would have been unbuttoning
Present Indefinite, Passive Voice
I am unbuttonedwe are unbuttoned
you are unbuttonedyou are unbuttoned
he/she/it is unbuttonedthey are unbuttoned
Present Continuous, Passive Voice
I am being unbuttonedwe are being unbuttoned
you are being unbuttonedyou are being unbuttoned
he/she/it is being unbuttonedthey are being unbuttoned
Present Perfect, Passive Voice
I have been unbuttonedwe have been unbuttoned
you have been unbuttonedyou have been unbuttoned
he/she/it has been unbuttonedthey have been unbuttoned
Past Indefinite, Passive Voice
I was unbuttonedwe were unbuttoned
you were unbuttonedyou were unbuttoned
he/she/it was unbuttonedthey were unbuttoned
Past Continuous, Passive Voice
I was being unbuttonedwe were being unbuttoned
you were being unbuttonedyou were being unbuttoned
he/she/it was being unbuttonedthey were being unbuttoned
Past Perfect, Passive Voice
I had been unbuttonedwe had been unbuttoned
you had been unbuttonedyou had been unbuttoned
he/she/it had been unbuttonedthey had been unbuttoned
Future Indefinite, Passive Voice
I shall/will be unbuttonedwe shall/will be unbuttoned
you will be unbuttonedyou will be unbuttoned
he/she/it will be unbuttonedthey will be unbuttoned
Future Perfect, Passive Voice
I shall/will have been unbuttonedwe shall/will have been unbuttoned
you will have been unbuttonedyou will have been unbuttoned
he/she/it will have been unbuttonedthey will have been unbuttoned