Grammar
Vocabulary
Grammar Facts
100

Past Continous vs Simple Past


I ______(put) on my clothes when you______(open) the door.

I was putting on my clothes when you opened the door.

100

A situation that involves a difficult choice. A problem that usually has two possible solutions.

Dilemma

100

In this grammar, one action in progress in the past is interrupted by another action.

Past continuous vs Simple past

200

Past perfect


I ______(finish) homework when the teacher_____(ask) for it.

I had finished homework when the teacher asked for it.

200

A sudden, dangerous event that requires quick action.

Emergency

200

In this grammar, there are two actions in the past, but there is one action that was completed or happened before the other one.

Past Perfect

300

Past Continous vs Simple Past


As my friends _________(cook), a cat______ (fall) into the pot.

As my friends were cooking, a cat fell into the pot.

300

An unexpected event that brings good fortune. 

Lucky break

300

What's the formula used for the past perfect?

Sub + had + past participle (+ complement).

400

Past Continous vs Simple Past


She ________(dance) and (sing)________, but the music_______(stop).

She was dancing and singing, but the music stopped.

400

An event that causes suffering or destruction

Disaster

400

The connectors (While) and (As) are usually followed by which grammar? 

Past Continous 

500

Past perfect

I graduated from college in 2018. I had my first baby two years later.

I______(have)my baby after I ______(graduate) from college. 

I had my baby after I had graduated from college.

500

Unexpected events that seem to be connected

Coincidence

500
('d) is the contraction of _____ and _______.


Example

I_____go to my house if I had the change.

I_____left home when the criminals broke into.

would and had

M
e
n
u