The gerund, the three conjugations

1. What is the Spanish gerund and when do you really need it?

• The Spanish gerundio is the form in -ando / -iendo.
• It usually appears with estar:
  estar + gerundio → an action in progress.

Estoy leyendo el contrato. = I am reading the contract (right now).

Estábamos viviendo juntos. = We were living together (at that time).

• Think of it as English “-ing” with be:
  I am working → Estoy trabajando.
• On this level, focus on: estar + gerundio in the present and past.

2. How to form the gerund: the core pattern

Take the verb in infinitive, remove the ending, and add:

• -ar → -ando
• -er / -ir → -iendo

• Always check: Is the ending exactly -ando or -iendo?
• If you see something like *trabajanda or *vivieno, it is wrong.

3. Irregular gerunds you will really use

Some frequent verbs change spelling or the stem, but you will see them a lot in real life, so it is worth memorising them.

• Notice 3 typical patterns:
  • e → i: decir → diciendo, venir → viniendo.
  • o → u: dormir → durmiendo.
  • -er / -ir with vowel: leer, oír → leyendo, oyendo (the y helps pronunciation).

4. Meaning: present vs. past continuous

With estar + gerund you usually answer:

• What is/was happening at that moment?

1. Present: something is happening now

   Ahora estoy trabajando en casa.
   = I am working at home now.

   Ellos están leyendo el contrato.
   = They are reading the contract.

2. Past (imperfect): something was in progress then

   Ayer a las ocho, yo estaba durmiendo.
   = Yesterday at eight, I was sleeping.

   Cuando llegué, mi pareja estaba cocinando.
   = When I arrived, my partner was cooking.

• So you combine:
  • estar (present) + gerund → action in progress now.
  • estar (imperfect: estaba, estaban…) + gerund → action in progress in the past.

5. Gerund vs. other forms: typical confusions

Many learners mix up infinitive, gerund and past participle. Here is a quick visual check.

• After estar to express “in progress”, you must use the gerund:
  • *Estoy leer → Estoy leyendo.
  • *Ellos están vivido → Ellos están viviendo.

6. Word order and negation with the gerund

The position in the sentence is usually simple. Compare with English.

1. Basic order

   Subject + estar + gerund (+ rest)

   Yo estoy leyendo el contrato.

   Ellos están viviendo juntos.

2. Negation

   Put no before estar.

   Yo no estoy leyendo el contrato.
   = I am not reading the contract.

   Ellos no están viviendo juntos ahora.

3. Two actions in progress

   You can repeat estar, or say it once.

   • Estoy trabajando y leyendo correos.
   • Estoy trabajando y estoy leyendo correos. (both correct)

7. When Spanish prefers simple present instead of gerund

In English, you use “I am living…” or “I am working…” very often.

In Spanish, sometimes the simple present is more natural, especially for:

• Habits and routines (not just “right now”)
• Longer situations that are not viewed as an action in progress

• Use estar + gerund when you want to highlight the moment:
  • Ahora mismo estoy trabajando.
  • En este momento estamos buscando piso.

8. Mini self-check: can you do this now?

Go through these questions mentally. If you can answer “yes” to all, you have the essentials.

1. Form
   • Can I form the gerund of a regular verb?
     • trabajar → trabajando
     • comer → comiendo
     • vivir → viviendo
   • Can I recognise if a word in -ando / -iendo is a valid gerund (no strange extra letters)?
2. Use with estar
   • Can I say what I am doing now?
     • Estoy ________ (working, reading, living with…)
   • Can I say what I was doing at a specific moment in the past?
     • En ese momento, yo estaba ________.
3. Common mistakes
   • Do I avoid *estoy leer and *estoy vivido and use the gerund instead?
   • Do I remember the key irregulars leyendo, yendo, oyendo, diciendo, viniendo, durmiendo?

If you feel unsure about one point, go back to that section, look at the table, and say your own 2–3 example sentences aloud. That short practice usually makes the form “stick”.