In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from errors, select 'No Error'.
She is walking (1)/ in the park (2)/ since morning. (3)/ No error (4)

Question

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from errors, select 'No Error'.

She is walking (1)/ in the park (2)/ since morning. (3)/ No error (4)

Prepp Team · Accepted Answer

Identifying Grammar Errors: Tense Usage with 'Since'

The question asks us to identify the part of the sentence that contains an error. The sentence provided is:
She is walking (1)/ in the park (2)/ since morning. (3)/ No error (4)

Analyzing the Sentence Structure and Meaning

Let's break down the sentence and examine each part:

Part (1): "She is walking" - This uses the present continuous tense (subject + is/am/are + verb + -ing). This tense is typically used for actions happening at the moment of speaking or for temporary situations.
Part (2): "in the park" - This is a prepositional phrase indicating location. It correctly follows the verb and specifies where the action is taking place.
Part (3): "since morning" - This is a time phrase. The word 'since' is used to indicate a starting point in time (e.g., since Monday, since 2010, since morning). It is often used with perfect or perfect continuous tenses to show an action that started in the past and continues up to the present.
Part (4): "No error" - This would be the answer if all parts of the sentence were grammatically correct.

Evaluating Tense Compatibility with Time Expressions

The key to finding the error lies in the combination of the tense used in part (1) ("is walking" - present continuous) and the time phrase used in part (3) ("since morning").

The present continuous tense ("is walking") is used for actions happening right now or temporary actions. It is generally not used with time expressions that indicate a duration from the past until now, like 'since' or 'for'.
Time expressions like 'since morning', 'since yesterday', 'for two hours', 'for a week' indicate an action or state that began in the past and has continued up to the present moment.
The tense typically used with 'since' or 'for' to describe an ongoing action that started in the past is the present perfect continuous tense (subject + has/have + been + verb + -ing). For example, "She has been walking for two hours" or "She has been walking since morning".

In the given sentence, "She is walking" (present continuous) is used with "since morning". This combination is grammatically incorrect because "since morning" implies an action that started in the past and is continuing, which requires a perfect continuous or sometimes a perfect tense, not the simple present continuous.

The correct sentence should be: "She has been walking in the park since morning." This uses the present perfect continuous tense, which is appropriate for an action that started in the past ("morning") and continues into the present.

Identifying the Error Location

Since the tense "is walking" in part (1) is incompatible with the time phrase "since morning" in part (3), the error lies in the tense used in part (1).

Therefore, part (1) contains the error.

Sentence Parts Analysis
Part	Phrase	Analysis	Error
(1)	She is walking	Present continuous tense. Incorrectly used with 'since morning'. Should be present perfect continuous.	Yes
(2)	in the park	Correct prepositional phrase of location.	No
(3)	since morning	Correct time phrase indicating duration from a past point. Requires a perfect/perfect continuous tense.	No
(4)	No error	Incorrect, as there is an error in part (1).	N/A

Based on this analysis, the error is in part (1).

Revision Table: Tenses with 'Since' and 'For'

Tense	Structure	Usage with Since/For	Example
Present Perfect	Subject + has/have + V<sub>3</sub>	For actions that started in the past and continue to the present, often states or completed actions with current relevance.	She has lived here since 2010. (State) I have finished the report. (Completed, but relevant now)
Present Perfect Continuous	Subject + has/have + been + V<sub>ing</sub>	For actions that started in the past, are still continuing in the present, and the focus is on the duration or the ongoing nature of the action.	She has been walking since morning. (Ongoing action with focus on duration) They have been studying for three hours.
Past Simple	Subject + V<sub>2</sub>	Used for completed actions in the past. Not typically used with 'since' or 'for' in this context unless referring to a period ending in the past.	She walked in the park yesterday. (Completed action)
Present Continuous	Subject + is/am/are + V<sub>ing</sub>	For actions happening now or temporary situations. Not used with 'since' or 'for' indicating duration from the past.	She is walking now. (Action happening at the moment)

Additional Information on Time Adverbials

Time adverbials like 'since' and 'for' are crucial for determining the correct tense. Understanding their usage helps avoid common grammar errors.

Since: Indicates the starting point of an action or state. It is followed by a point in time (e.g., since 10 o'clock, since last year, since my birthday, since she left). It is typically used with perfect or perfect continuous tenses.
For: Indicates the duration of an action or state. It is followed by a period of time (e.g., for two hours, for three days, for a week, for a long time). It is also typically used with perfect or perfect continuous tenses when the action continues up to the present. It can be used with other tenses too, but then it describes the duration within that tense's timeframe (e.g., She walked for an hour yesterday - past simple).

In summary, when you see 'since' or 'for' referring to an action that began in the past and is still happening or has results in the present, the present perfect or present perfect continuous tense is usually required.