Use the present perfect to talk about recent events or a past event which the speaker feels s is connected with
the present. Use the past simple to talk about a finished action.
Certain n time expressions may be used with the past simple.
This chart clearly explains the use of the adverbs of frequency with great examples. The adverbs of frequency are mainly used with the simple present tense.
Consider the structure and meaning of a sentence when punctuating it.
Sentence structure is a basic part of language, and ordinarily, we don't have to think about it very much. However, when we are not sure how to punctute a sentence, we do have to think about its structure, and usually in terms of three basic questions:
English language learners confuse the use of the simple present tense and the present continuous tense. The following table clearly explains the difference between the simple present and present continuous tense
We form the present simple with the subject (noun or personal pronoun) and the verb. We use the present simple for daily routines, repeated actions or habits and permanent states.
Basically, a sentence is a combination of two grammatical units—the subject and the predicate.
Subject
The subject of a sentence refers to what the sentence is about, often the
person or thing that carries out the action of the verb. The subject usually gives
a clear idea of what the sentence is about.
The subject can be a noun—either a common noun or a proper noun or a
verbal noun; a noun phrase; a pronoun; a subordinate clause; an infinitive.
In the following sentences, the underlined words form the subject of the sentence
and the subjects are nouns.