Correct Usage of Tomorrow and By Tomorrow in English

Correct Usage of 'Tomorrow' and 'By Tomorrow' in English

When it comes to specifying the future in the English language, the words 'tomorrow' and 'by tomorrow' are often used. However, the usage of these phrases can be confusing, especially for non-native speakers. Let's explore the correct usage of 'tomorrow' and 'by tomorrow' in English.

Understanding 'Tomorrow'

Tomorrow is a straightforward term used to denote the day after today. It is a specific day that comes at a fixed point in time, at 12:00 AM the day after today. The phrase 'on tomorrow' is not correct in English.

For example, you would say: “We will celebrate his birthday tomorrow.”

If you need to express that an action will take place before any point in tomorrow, use the phrase 'by tomorrow'.

The Importance of 'By Tomorrow'

By tomorrow is used to indicate that something should be completed or happen at any point before the end of tomorrow. It signifies the future perfect tense, which means the action will be completed by the designated time.

For instance:

Shall I have called you by tomorrow?

If you just want to say that something will happen on tomorrow, use 'tomorrow' alone.

Comparing 'Can I call you on tomorrow?' and 'Shall I call you by tomorrow?'

Let's consider the sentences:

Can I call you on tomorrow? - This is perfectly acceptable. The phrase 'on tomorrow' is correct in this context, as it implies a specific day in the future.

Shall I call you by tomorrow? - This is also correct. The phrase 'by tomorrow' is used to indicate that the call will be made at or before the end of the following day.

However, the original sentence:

Shall I call you by tomorrow? - Is not correct. The structure should be:

Shall I have called you by tomorrow?

Examples of Correct Usage

He will have reached Mumbai by tomorrow.

He will have been working there for 3 days by next Monday.

If you mean it to be tomorrow then say it upfront: “We will celebrate his birthday tomorrow.”

You can say 'by tomorrow' when you mean it will be held within tomorrow: “I will send my sales report by tomorrow.”

I can complete my work by tomorrow.

Summary

To summarize, 'tomorrow' is used to denote a specific day in the future, while 'by tomorrow' is used to indicate that something should be completed or happen by the end of the following day. Remember not to use the preposition 'on' with 'tomorrow,' 'today,' or 'yesterday.

Example:

Proper examples:

“I will transfer the amount by tomorrow.”

“I will celebrate his birthday tomorrow.”

“I can complete my work by tomorrow.”

“He will have reached Mumbai by tomorrow.”

“He will have been working there for 3 days by next Monday.”

Incorrect examples:

“I will transfer the amount on tomorrow.”