- Positive/Affirmative: subject + aux. verb + past participle
- Negative: subject + aux. verb + past participle
- Question: verb + subject + past participle
Auxiliary verb = have/has.
The past participle often ends in “ed” (finished/decided/worked/talked), but many important verbs are irregular and does not end in “ed”
Examples: (lost/done/written/driven/thought etc.).
- Where is your key? I don’t know. I have lost it. (Means: I don’t have it now)
- He told me his name, but I have forgotten it. (Means: I can’t remember it now)
- Is sally here? No, she has gone out. (Means: She is out now)
- I can’t find my backpack. Have you seen it? (Means: Do you know where it is now?)
List of Common Irregular Verbs (Lista de verbos irregulares comunes)
List of Comparative & Superlative Adjectives
How to ask questions correctly using “how long have you (been)...?”.
How To Use Your Past Simple Correctly
How To Use Your Past Simple Forms
How To Use Your Present Perfect Continuous/Progressive Forms