Question 1

Why does the Spanish sentence use seguís haciendo instead of a word like todavía to mean "still doing"?

Accepted Answer

Using the verb seguir followed by a gerund (like haciendo) is a common grammar pattern called a continuation periphrasis. It is the most natural way to express that an action is still happening or continuing. While you could technically use todavía (still) with the present tense, seguir + gerund is the standard way to emphasize "to keep doing" or "to still be doing" something.

Question 2

Who is the verb seguís referring to, and why doesn't it have a stem change?

Accepted Answer

Seguís is the vosotros form, meaning plural "you" (used informally in Spain). The verb seguir has an e-to-i stem change in most present tense forms (sigo, sigues, sigue, siguen). However, the nosotros and vosotros forms never use this stem change, which is why it keeps the original vowel and remains seguís.

Question 3

Why do we use para instead of por in para la tesis?

Accepted Answer

We use para here because it expresses purpose or destination. The experiment is being done for the purpose of the thesis. You would use por if you wanted to express the cause or motivation behind an action (for example, if you were doing the experiment because of a specific event).

Question 4

The word tesis ends in an "s". How can I tell if it is singular or plural here?

Accepted Answer

You can tell it is singular because it uses the singular feminine article la. Words ending in -is, like tesis, crisis, or oasis, do not change their spelling in the plural. "The thesis" is la tesis and "the theses" is las tesis.

¿Seguís haciendo el experimento para la tesis?

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