Present continuous
Past simple
Past continuous
Suffixes
100

Right now, she ______________________ (study) for her upcoming exams. 

is studying 

100

He ______________________ (visit) five different countries last summer. 

visited 

100

While I ______________________ (read) a book, the phone rang. 

was reading 

100

Improve

Improvement

200

What ______________________ (you do) at this very moment?

are you doing

200

Yesterday, she ______________________ (read) the entire novel. 

read

200

What ______________________ (you do) when the power went out yesterday?

were you doing

200
Confident 
Confidence
300

Theey ______________________ (learn) a new language this year. 

are learning

300

What ______________________ (you eat) for breakfast this morning?

did you eat

300

At midnight, they ______________________ (celebrate) a family reunion. 

were celebrating

300

Communicate 

Communication 

400

Why ______________________ (he speak) so loudly on the phone right now?

is he speaking

400

They ______________________ (choose) a fascinating movie last night, but we ______________________ (not watch) it together. 

chose / didn't watch

400

He ______________________ (not sleep) when I called him last night. 

wasn't sleeping 

400

Help

Helpful

500

Look outside! It ______________________ (snow) heavily!

is snowing

500

She ______________________ (come) home with some groceries that she ______________________ (buy) from the shop yesterday. 

came/bought

500

While they ______________________ (have) dinner, they received an unepexted visitor who ______________________ (carry) a strange bag. 

were having / was carrying

500

Develop 

Development