Personal Infinitive Application

In Portuguese, the personal infinitive is used to express future actions that are related to other people. It is a specific form of the infinitive verb that shows the subject performing the action of the verb. This form is often used to express intentions, desires, or requests that involve someone other than the subject.

Here's how to use the personal infinitive correctly in Portuguese:

1. Expressing intentions:

When expressing intentions or plans for the future that involve someone else, use the personal infinitive after the verb "ir" (to go). Here's the structure:

ir + infinitive verb (person) {expressing intentions}

Examples:

• "Eu vou ajudar-te amanhã." (I am going to help you tomorrow.)
• "Nós vamos encontrar-nos no parque." (We are going to meet at the park.)

2. Expressing desires:

When expressing desires or wishes involving someone else, use the personal infinitive after verbs like "querer" (to want) or "desejar" (to wish). Here's the structure:

verb (person) + infinitive verb {expressing desires}

Examples:

• "Eu quero-te ajudar com o projeto." (I want to help you with the project.)
• "Ela deseja que eu vá à festa com ela." (She wishes for me to go to the party with her.)

3. Making requests:

When making requests involving someone else, use the personal infinitive after verbs like "pedir" (to ask) or "sugerir" (to suggest). Here's the structure:

verb (person) + infinitive verb {making requests}

Examples:

• "Eu peço-te para me ajudares com a mudança." (I ask you to help me with the move.)
• "Eles sugerem que nós venhamos mais cedo." (They suggest that we come earlier.)

4. Expressing beliefs or assumptions about someone else's actions:

When expressing beliefs or assumptions about someone else's actions, use the personal infinitive after verbs like "acreditar" (to believe) or "supor" (to suppose). Here's the structure:

verb (person) + infinitive verb {expressing beliefs}

Examples:

• "Eu acredito que ele vá fazer o exame." (I believe that he will take the exam.)
• "Nós supomos que eles venham nos visitar este fim de semana." (We suppose that they will come visit us this weekend.)

Remember that the personal infinitive is formed by adding the appropriate endings to the infinitive verb stem. For regular verbs, the endings are the same as the present subjunctive endings.