Quando começa a rega?

when

Breakdown of Quando começa a rega?

• começar: to start
• a rega: the watering

Questions & Answers about Quando começa a rega?

Why is the word order Quando começa a rega? instead of something like Quando a rega começa?

Both are possible in Portuguese.

• Quando começa a rega? is very natural, especially in questions.
• Quando a rega começa? is also correct, but it can sound a little more neutral or slightly more emphatic on a rega.

Unlike English, Portuguese does not need do/does in questions, and it often keeps normal verb forms without extra question words like does.

So Portuguese can ask a question simply by using:

• the question word quando
• normal verb conjugation
• intonation or a question mark

Why is it começa and not começar?

Começa is a conjugated verb form, while começar is the infinitive.

Here, the sentence needs a finite verb, because it is a complete question:

• começar = to start
• começa = starts / does start

The subject is a rega, which is third person singular, so the verb is also third person singular:

• a rega começa = the watering starts

That is why começa is used.

What is the subject of the sentence?