Breakdown of Suppongo che tu abbia un buon movente.
tu
you (singular)
un
a / an (masculine)
buono
good
avere
to have
Questions & Answers about Suppongo che tu abbia un buon movente.
Why do we use abbia instead of the regular present tense hai here?
Abbia is the present subjunctive of avere. We must use the subjunctive here because the sentence starts with suppongo che (I suppose that). Verbs expressing opinions, beliefs, assumptions, or doubts always trigger the subjunctive for the action that follows.
Italian usually drops subject pronouns. Why is tu included before abbia?
In the present subjunctive, the conjugations for io, tu, and lui/lei are exactly the same (in this case, they are all abbia). Including tu makes it instantly clear that you are saying "that you have" rather than "that I have" or "that he/she has".
What is the infinitive of suppongo?
The infinitive is supporre (to suppose or assume). It is an irregular verb that follows the exact same conjugation pattern as porre (to put or place), which is why its io form is suppongo.
Why is the word for "good" written as buon instead of buono?