to be plain as day
Idiom Definition:
"to be plain as day"
to be very clear or obvious
This picture is literally and idiomatically becoming as plain as day. - - - - -> 
Idiom Scenario 1:
Victor and Bruce are out test driving the race car they have been working on. The car is not running well. The two teenage boys stop the car. They raise the hood and are looking in the engine compartment for the cause of the trouble ...
Victor: "What do you suppose the problem is?"
Bruce: "I'm not sure, but let's have a look."
Victor: "Look, there is a loose spark plug wire, plain as day."
Bruce: "Oh ya. It is clearly the problem."
Idiom Scenario 2:
Nancy and Patricia are talking over coffee. They are talking about Nancy's husband, Michael ...
Patricia: "What's wrong, Nancy?"
Nancy: "It's Michael. He's been acting strange for a couple of months."
Patricia: "What do you mean?"
Nancy: "He says he has been working late many nights but when I phone his work, he is not there. We have not made love in months and I found a lipstick stain on the collar of his shirt.
Patricia: "I hate to say this but the truth seems as plain as day. Michael is having an affair?"
Idiom Scenario 3:
Is it plain as day that the light turned red before the truck arrived at the intersection?
Idiom Scenario 4:
Is it as plain as day that the rock is moving?
Idiom Scenario 5:
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Idiom Usage:
Alternate form:
"to be as plain as day"
Gerund Form of the Idiom:
Being plain as day means that something is easy to see or understand.
Idiom Conjugations:
to be plain as day

| PERSON | idiom in the positive | idiom in the negative | idiom as a question |
|---|---|---|---|
| Third-singular (it) | It is plain as day when you look at it clearly. |
It is not plain as day unless you look at it clearly. |
Is it plain as day when you look at it clearly? |
| Third-singular (it) | The problem is plain as day when you look at it clearly. |
The problem is not plain as day unless you look at it clearly. |
Is the problem plain as day when you look at it clearly? |
| Not | possible | in this | tense. |
|---|
| PERSON | idiom in the positive | idiom in the negative | idiom as a question |
|---|---|---|---|
| Third-singular (it) | They have been presented as plain as day therefore they are very clear. |
They have not been presented as plain as day therefore they are very unclear. |
Have they been presented as plain as day? |
| Third-singular (it) | The facts have been presented as plain as day therefore they are very clear. |
The facts have not been presented as plain as day therefore they are very unclear. |
Have the facts been presented as plain as day? |
| Not | possible | in this | tense. |
|---|
to be plain as day
| PERSON | idiom in the positive | idiom in the negative | idiom as a question |
|---|---|---|---|
| Third-singular (it) | It was plain as day last week. |
It was not plain as day last week. |
Was it plain as day last week? |
| Third-singular (it) | The solution to the problem was plain as day last week. |
The solution to the problem was not plain as day last week. |
Was the solution to the problem plain as day last week? |
| Not | possible | in this | tense. |
|---|
| PERSON | idiom in the positive | idiom in the negative | idiom as a question |
|---|---|---|---|
| Third-singular (it) | It had been as plain as day until someone changed the problem. |
It had not been as plain as day because someone changed the problem. |
Had it been as plain as day until someone changed the problem? |
| Third-singular (it) | The solution to the problem had been as plain as day until someone changed the problem. |
The solution to the problem had not been as plain as day because someone changed the problem. |
Had the solution to the problem been as plain as day until someone changed the problem? |
| Not | possible | in this | tense. |
|---|
to be as plain as day

| PERSON | idiom in the positive | idiom in the negative | idiom as a question |
|---|---|---|---|
| Third-singular (it) | It will be plain as day when we receive the full story tomorrow. |
It will not be plain as day unless we receive the full story tomorrow. |
Will it be plain as day when we receive the full story tomorrow? |
| Third-singular (it) | The reason for his poor behavior will be plain as day when we receive the full story tomorrow. |
The reason for his poor behavior will not be plain as day unless we receive the full story tomorrow. |
Will the reason for his poor behavior be plain as day when we receive the full story tomorrow? |
| Not | possible | in this | tense. |
|---|
| PERSON | idiom in the positive | idiom in the negative | idiom as a question |
|---|---|---|---|
| Third-singular (it) | It will have been plain as day all along. |
It will not have been plain as day all along. |
Will it have been plain as day all along? |
| Third-singular (it) | The reason for his behavior will have been plain as day all along. |
The reason for his behavior will not have been plain as day all along. |
Will the reason for his behavior have been plain as day all along? |
| Not | possible | in this | tense. |
|---|



