English as a second language 
Simple past tense

• Main content: Past simple
• Other contents: Regular and Irregular Verbs

English as a second language 
Worksheet on present perfect simple
 

• Main content: Present perfect
• Other contents: present perfect simple, form, positive, negative

English as a second language 
Present simple vs continuous grammar exercises

• Main content: Present simple and present continuous

English as a second language 
by anmafan

• Main content: Present perfect or past simple