This article discusses prepositions of direction, such as ‘up’, ‘down’, ‘in’, ‘out’, ‘over’, ‘under’, ‘across’, ‘towards’, and ‘away’. It explains how to use them correctly in sentences.

The present continuous tense is used to describe actions that are happening now or around now. It is formed with the present tense of the verb ‘to be’ plus the present participle of the main verb.

The Present Perfect Continuous Tense is used to express actions that began in the past and are still continuing in the present. It is used to describe actions that have been happening for a period of time.

The present perfect tense is a verb tense used to describe actions that have been completed in the past but still have an effect on the present. It is formed by combining the auxiliary verb “have” or “has” with the past participle of a verb.