WILL

We use will for:

• On-the-spot decisions: I´m tire. I´ll take a nap.

• Predictions based on what we know:

          You´ll lose weight with this workout.

• Promises, offers, theats, hopes:

           I promise you´ll feel better right away.

NOTE: After time words (while, before, after, until, when, if, etc.) we don´t use will. We use the simple present. I´ll call you when I reach Brazil. (NOT: wen I will reach)BUT When will he call? (question word)

Simple Present

We use the simple present for:

• Facts: the sun rises in the east. It doesn´t rises in the west.

• Habits/routines: Astronauts usually sleep 8 hours a day after a 16-hour. They take sponge baths daily. Do they exercise regulary? Yes, they do.

• Timetables: The space moseum opens at 9 pm every weekday.

SPELLING RULES

• Most verbs + -s I sleeps - he sleeps
• verbs in .ss, -sh,-x,-o, + -es I miss - he misses
• consonant + -ies I study - he studies
• vowel + y + -s I play - he plays

Conditional

0 CONDITIONAL
If(conditional,=cause) + simple present + present (effect)
Example: If you go, i go.

If/Clause|Main Clause.
If/When + Simple present + Simple present

If/When you heat water, it boils.
Use: to express a general truth or scientisfic fact. In this type conditional, we can use when instead of if.
When the if-clause precedes the main clause, we can use a comma to separate the two clauses. Compare:
If you heat water, it boils. Water bouls if you heat it.


1st CONDITIONAL
f(conditional=Cause)+ do or doesn't(present)+ future.
Example: If i work tomorrow i will see my boss.

If + simple present -->will + base form of main verb.
If we keep cutting down trees, animals will lose their habitat.
Use: To talk about a possible situation in the present or future.
Animals will lose their habitat if we keep cutting down trees.
Note: Unless=If not.
Compare the examples
Unless we stop cutting down trees, animals will lose their habitats.
If we don't stop cutting down trees,....