PRESENT PERFECT: USES
1) Actions that start in the past and continue in the present.
"Jane has lived in London since 1996".
2) Actions that happened in the past and have some kind of effect or relevance in the present.
"Paul has lost his wallet. He needs to cancel his credit card".
3) Actions that can be resumed.
"I haven't finished reading the book".
4) Actions that just happened, recent actions.
"They've just bought a new car".
5) Actions about life's experience.
"I've never tried parachuting".
CONDITIONAL SENTENCES
TYPE
|
FORM
|
USE
|
EXAMPLES
|
0
|
IF + PRESENT SIMPLE
↓
PRESENT SIMPLE
|
- UNIVERSAL TRUTHS
- FACTS
|
If you heat ice, it
melts.
|
1
|
IF + PRESENT SIMPLE
↓
‘WILL’/’WON’T’ +
INFINITIVE
|
- POSSIBILITY IN THE FUTURE, UNDER CERTAIN CONDITION
|
If I travel to
London, I will visit the Big Ben.
|
2
|
IF + PAST SIMPLE
↓
‘WOULD’/’WOULDN’T’ +
INFINITIVE
|
- HYPOTHESIS
|
If you were a bird, you would be able to fly.
|
No hay comentarios:
Publicar un comentario