Proteger: Full Conjugation

Proteger means "to protect" and belongs to the group of -ger / -gir verbs that change g → j before a or o. This spelling shift is purely phonetic: without it, yo protego would be pronounced with a hard g, losing the soft "h"-like sound of the infinitive proteger. The same pattern applies to coger, escoger, recoger, elegir, and many others.

Apart from that small spelling shift, proteger is otherwise a completely regular -er verb. The change affects only the yo form of the present indicative and all six forms of the present subjunctive.

Present Indicative

Note the j in protejo — the ending -o would otherwise clash with the soft g of proteger.

Preterite

The preterite is fully regular — no j appears because every ending starts with i, which preserves the soft g sound naturally.

Imperfect

Future

Conditional

Present Subjunctive

All six subjunctive forms have j because their endings all begin with a, which would otherwise harden the g.

Imperfect Subjunctive (-ra forms)

Imperative

Notice that the affirmative tú form keeps the g (protege), while the negative tú and all the usted/ustedes forms use j (no protejas, proteja, protejan).

Non-Finite Forms

• Infinitive: proteger
• Gerund: protegiendo
• Past participle: protegido

Common Uses

Proteger commonly takes the preposition de to indicate what you're protecting someone from: proteger del sol, proteger del frío, proteger de los peligros. When the object is a person, don't forget the personal a.