The Present Tenses

The simple present tense : This is mostly used to describe facts and habits.

• I walk daily.

The present progressive tense : This is used for an on-going action in the present.

• I am walking to your house at the moment.

The present perfect tense : This is used for actions began in the past.

• I have run for 15 miles so far.

The present perfect progressive tense : This is used for a continuous activity that began in the past and continues into the present, or a continuous activity that began in past but has now finished.

• I have been walking for hours.