when

while

When I was two years old my grandfather died, so I don’t remember him and when I was six years old I saw his picture so I felt happiness

Yesterday while I was working my friends were doing a party for me, so when I arried home, they were there, it was a big party

While the chef was cooking I was drinking some beers

Going

Won’t

Will

Next weekend. I’m going to visit a friend of mine near Medellin. We’re going to fish in the lake and then we’re going to watch a movie at the cinema. I won’t come back on Monday night. I’m going to the university on Tuesday morning.

Arrive at

Arrive in

My boss will arrive at the London airport yesterday; he will arrive in city in the evening

Adverbs

Time expressions

Two years ago. I was walking downtown and I met one child, he never met  his parents and he’s lived in the street. He wanted some money because he got starving. So I gave him some money. Later I wanted to one park and I saw the child was consuming drugs, so I thought. Is good or bad to give money a the children in the street?

Since this day I don’t  give bad money. I give food again

Conditional type I

My best friend tell me. I feel sick. So I told her: if you feel sick, you must stay in bed

If I don't hurry, I'll miss your bus and I need to go fast at the hospital. my best friend is sick

I have to be my homework. If I don't do my homework, I can’t go to the party

If I have time, I'll visit my parents this afternoon. I love to see them

Conditional type II

My sister's boyfriend is German. I don’t understand what he say.If he spoke Spanish, I would like understand him

I want to play chess. If I didn't have to work today, I could to play chess

Conditional type III

My cousins love fish.  If today hadn't rained, we would have gone fishing