2. PRESENT PERFECT:
HAVE/HAS + VERB (PAST PARTICIPLE)
To describe an action in the past that
has an effect in the present.
He has painted my house.
3. With expressions indicating
incomplete periods of time.(this
morning, this week, this month,
this year, today, recently, etc)
• I haven´t done my homework this
morning.
4. To talk about an action that began in
the past and has not finished in the
present, we use it with prepositions
For and Since .
• He has lived in California for five
years.
• They have worked in California since
2005.
5. A menudo el presente perfecto se utiliza con los
adverbios just (justo, acabar de hacer
algo), yet (aún),still (todavía), already (ya), ever (alg
una
vez), never (nunca), recently(recientemente), lately
(últimamente), so far (hasta aquí), up to now (hasta
ahora).
- They 've just signed an important contract..
- Sheila hasn't received an answer yet..
- Have you ever used this type of machine.
- We've had good results so far.
