Linkers of cause and consequence (ya que, puesto que, por lo tanto)

Ya que estás aquí, ayúdame con esto.Since you're here, help me with this.

You already know porque, entonces and por eso for everyday cause and result. This lesson adds a more precise set: ya que, puesto que and como for a reason, and por lo tanto, por consiguiente and así que for a consequence — connectors that lean toward writing, presentations and careful speech (with así que staying close to everyday use).

Quick shortcut: ya que / puesto que / como → give a reason, like porque, but tend to introduce something already known or taken for granted. debido a / a causa de → give a reason before a noun, not a clause. por lo tanto / por consiguiente → give a consequence, like entonces, in a more formal register; así que does the same job but stays everyday and common in speech.

Ya que, puesto que: a reason the listener probably already knows

Ya que and puesto que both mean "since" or "given that":

• Ya que estás aquí, ayúdame con esto. (Since you're here, help me with this.)
• Puesto que no hay más preguntas, terminamos la reunión. (Since there are no more questions, we're ending the meeting.)
• No fui a la fiesta ya que estaba enfermo. (I didn't go to the party since I was sick.)

There's a subtle difference in flavor from porque: ya que/puesto que tend to introduce a reason that's already known, obvious, or taken for granted — closer to "given that" — while porque more neutrally just answers "why." In practice, the two overlap a lot, and both are correct in most everyday contexts; porque itself can open a sentence too (Porque no tenía dinero, no compré el libro is perfectly standard), so sentence position isn't what sets these apart.

Como: a reason, usually stated up front

Como can also mean "since/as." It strongly prefers to open the sentence — that's the clear, natural choice to learn first — though you may occasionally see it used after the main clause too:

• Como no tenía dinero, no compré el libro. (Since I didn't have money, I didn't buy the book.)
• Compare the far more common order above with the rarer No compré el libro, como no tenía dinero — both exist, but starting with como is what you should reach for.

Debido a, a causa de: a reason before a noun

Debido a and a causa de both mean "due to" or "because of" — but unlike porque/ya que/puesto que, they go directly before a noun, not a full clause with a conjugated verb:

• El vuelo se retrasó debido a la tormenta. (The flight was delayed due to the storm.)
• No pudimos salir a causa del tráfico. (We couldn't leave because of the traffic.)
• Compare: El vuelo se retrasó porque había una tormenta. (…because there was a storm.) — debido a can't take a full clause like this one; a clause needs porque, ya que, puesto que or como instead.

Por lo tanto, por consiguiente, así que: a consequence

Por lo tanto, por consiguiente and así que all mean "therefore" or "so" — doing the same job as entonces/por eso:

• No había entradas, por lo tanto no pudimos entrar. (There were no tickets, therefore we couldn't get in.)
• El informe tiene errores; por consiguiente, hay que revisarlo. (The report has errors; consequently, it needs to be reviewed.)
• Llovía mucho, así que nos quedamos en casa. (It was raining a lot, so we stayed home.)

Así que is common and neutral — you'll hear it constantly in everyday speech, not just writing. Por consiguiente is the most formal of the three, typical of reports and essays; por lo tanto sits in between and is extremely common in both writing and careful speech.

Choosing a register

None of these replace porque/entonces/por eso — they add a more precise option for the same two jobs, and some lean more formal than others:

Common mistakes

• No compré el libro, como no tenía dinero isn't wrong, but it's the rarer order — to avoid sounding odd, it's clearer to put causal como first: ✅ Como no tenía dinero, no compré el libro.
• ❌ El vuelo se retrasó debido a había una tormenta. → ✅ El vuelo se retrasó debido a la tormenta or …porque había una tormenta. (debido a takes a noun, not a clause with a conjugated verb)
• ❌ No había entradas, porque no pudimos entrar. (using porque to introduce a consequence) → ✅ …por lo tanto no pudimos entrar. (a consequence needs por lo tanto/entonces, not porque)

Quick check

Choose the best connector:

1. (Ya que/Debido a) las obras en la calle, el tráfico está muy lento. (followed by a noun phrase, not a clause)
2. (Como/Debido a) no había estudiado, suspendí el examen. (followed by a full clause)
3. El restaurante estaba cerrado, (por lo tanto/porque) comimos en casa.
4. No fui a trabajar (ya que/debido a) estaba enfermo. (followed by a full clause)

Key takeaways

• Ya que, puesto que and como give a reason, like porque — they tend to introduce something already known or taken for granted, and causal como strongly prefers to open the sentence.
• Debido a and a causa de give a reason before a noun, not a clause with a conjugated verb.
• Por lo tanto, por consiguiente and así que give a consequence, like entonces/por eso — por consiguiente is the most formal, así que stays close to everyday speech, and por lo tanto sits comfortably in both.
• None of these replace the basic connectors — they're a more precise option for the same two jobs: giving a reason, or giving a result.