Yes: use the language of the quotation, rather than the language of the surrounding prose, to make necessary alterations to quoted material. The following example shows a change of verb tense for syntax:

Borges “siempre [supo], de algún modo, que sería escritor.”

For more information on altering quotations, see sections 6.63 through 6.67 of the MLA Handbook.

Work Cited

MLA Handbook. 9th ed., Modern Language Association of America, 2021. MLA Handbook Plus, 2021, mlahandbookplus.org/.