You use this tense for routines and habits
Present Simple
We use this tense to make predictions
Future Simple / Will
If you heat water over 100 degrees, it ______ (boil).
boils
I _____ (lose) my phone yesterday morning.
lost
Most students are _____ (tall) than Gonzalo.
taller
You use this tense for something ongoing at the time of speaking
Present Continuous
We use this expression to talk about your intentions
going to
If you _____ (not/study) for the exam, you ____ (fail).
If you don't study for the exam, you will fail.
I _____ (not know) you were Italian.
didn't know
That lunch option is _____ (healthy) than this one.
healthier
I usually do, but today I ________ (not/ study)
am not studying
"___ you ___ (play) tennis tomorrow afternoon?"
Are you playing tennis tomorrow afternoon?
If I ____(be) Mr. Marti, I _____(cut) my hair short.
If I were Mr. Marti, I would cut my hair short.
When teacher Daniel came into class, Elias ____ (dance) reggaeton.
was dancing
London is _____ (crowded) than Madrid.
more crowded
Many people __________ (not/ do) their homework every day.
don't do
We use this tense to talk about your arrangements, something that you have planned in advanced
Present Continuous
I ___ (probably/buy) a new car if I ___ (get) money.
will probably buy - get
By the time I got home, my brothers ______ (eat) all the pizza.
had eaten
Santiago de Compostela is ______ (far) than Toledo.
farther / further
You use this tense for life time experiences
Present Perfect
When you make a prediction based on clear evidence that you have you use this.
Going to
If I ___ (have) wings, I ___ ___ (be able to/fly) for everywhere.
had - could fly
As Maca ____ (study) for the exam, Bea _____(draw) a fat telettuby.
was studying / was drawing
The ______ (good) you eat, the _____ (fit) you get.
better / fitter