Research, Astronomy, and Philosophy: Exploring the World of Science and Ideas

Research (Investigación) - Invest/Investor (Invertir)

Astronomy/Astronomer - Politics/Politician (Política) - Invent/Inventor - Philosophy/Philosopher - Law/Lawyer (Ley) - Physics/Physicist (Física)

Make Up (Invent a Story) - Put Forward (Sugerir Algo) - Point Out (Explain Something) - Find Out (Descubrir) - Look Into (Uncover Information) - Bring About (Hacer que algo suceda)

Classmate, Room - Science Class, Fiction, Teacher

Computer Game, Program - Space Exploration

Pen Drive, Friend - Website, Blog

Time Table, Machine - Relativity (Theory)

Black Hole (Force Gravity Strong) - Precognition (Future) - Orbit, Cosmologist, Light Years

1-(UNLESS) IF + S + VPRESENTSIMPLE, S + VFUTURESIMPLE + COSA

If you study, you will pass the exam.

2-IF + S + VPASTSIMPLE, S + WOULD + VINFITIVE + COSA

If you studied, you would pass the exam.

3-IF + S + VPASTPERFECT, S + WOULD HAVE + VPASTPARTICIPLE + COSA

If you had studied, you would have passed the exam.

PRESENT (Paints/Is, Are Painted) - PAST (Painted/Was, Were Painted)

P.CONTINUOUS (Is, Are Painting/Being Painted)

P.PERFECT (Has Painted/Has, Have Been Painted)

P.PERF.CONTI (Has Been Painting/Has, Have Been Getting Painted)

PAST CONTI (Was, Were Being Painted)

PAST PERF (Had Been Painted)

FUT (Will Be Painted) CONTI (Will Be Getting Painted)

PERF (Will Have Been Painted)