manterei

Manterei is the first-person singular form of the Portuguese verb manter in the future indicative (futuro do indicativo), meaning “I will maintain” or “I will keep.” It expresses a planned action to continue or preserve something in the future. The verb manter itself comes from Latin manēre meaning “to stay” or “to remain,” and desenvolveram into the Portuguese vocabulary associated with keeping, preserving, or sustaining.

In usage, manterei is used to state intentions, commitments, or promises. It often accompanies a direct object indicating what is being kept or maintained: for example, “Manterei minha palavra” (I will keep my word), “Manterei a distância” (I will keep the distance), or “Manterei a calma” (I will keep calm).

Conjugation note: Other forms of manter in the futuro do indicativo include manterás, manterá, manteremos, manteréis, manterão. The form manterei is the standard single form used in both Brazilian and European Portuguese for the first-person singular in the future tense.