shall not be used more than two days vs shall not be used on more than two days

Both phrases are correct, but they have slightly different meanings. 'Shall not be used more than two days' implies that the item should not be used for a duration longer than two days. On the other hand, 'shall not be used on more than two days' suggests that the item should not be used on more than two specific days. The choice between the two depends on the intended meaning.

Last updated: March 27, 2024

shall not be used more than two days

This phrase is correct and commonly used to indicate that something should not be used for a duration longer than two days.

This phrase is used to set a limit on the duration for which something can be used. It implies that the usage should not exceed two days.

Examples:

This medication shall not be used more than two days after opening.
The product shall not be used more than two days after the expiration date.
The device shall not be used more than two days in a row.
The solution shall not be used more than two days after preparation.
The cream shall not be used more than two days after being exposed to air.

Show examples from the web [+]

In particular, an animal shall not be used more than once in experiments entailing severe pain, distress or equivalent suffering.
That footage was taken more than two days later.
The blood is human, no more than two days old.
Starke never stays in a city more than two days.
You should have used more than two.
The chairperson shall not serve more than two consecutive terms.
An export or import authorisation shall not be granted for more than two scheduled substances.
I should be no more than two days behind you.
You know, I don't think Jenny and I have been apart for more than two days since we met.
He supposedly was in a coma for more than two days but... I really can't say.
If mild symptoms occur and last for more than two days, veterinary advice should be sought.
She's not used to seeing me more than two days in a row.
You'll have your boy back in no more than two days.
Shouldn't be more than two days' work.
But without water, you won't survive more than two days out there.
More than two days, and I lose my job.
Shouldn't be more than two days.
I don't think I've had it for more than two days.
Snowstorms would move over Missouri that Sunday, February 19th shutting down commerce for more than two days.
But it shouldn't be dead for more than two days.

Alternatives:

shall not be used for more than two days
should not be used beyond two days
must not be used longer than two days
cannot be used for more than two days
is not to be used for more than two days

shall not be used on more than two days

This phrase is correct and commonly used to indicate that something should not be used on more than two specific days.

This phrase is used to specify a limit on the number of days on which something can be used. It implies that the usage should not occur on more than two specific days.

Examples:

This coupon shall not be used on more than two days in a month.
The equipment shall not be used on more than two days in a row.
The service shall not be used on more than two days during the week.
The facility shall not be used on more than two days in a year.
The product shall not be used on more than two days in a row.

Show examples from the web [+]

There are no data available for animals treated on more than two occasions.
A proposing organisation shall not receive support for information and promotion programmes on the same product or scheme, carried out in the same geographical market on more than two consecutive occasions.
capable of operating simultaneously on more than two carrier frequencies;
c. Capable of operating simultaneously on more than two carrier frequencies;
That footage was taken more than two days later.
The blood is human, no more than two days old.
Starke never stays in a city more than two days.
The claim shall not be used on food which is 100 % sugars.
In general, it is possible to vary the leading factors on more than two levels, which only increase the number of analyses to be performed,
The chairperson shall not serve more than two consecutive terms.
An export or import authorisation shall not be granted for more than two scheduled substances.
I should be no more than two days behind you.
You know, I don't think Jenny and I have been apart for more than two days since we met.
He supposedly was in a coma for more than two days but... I really can't say.
If mild symptoms occur and last for more than two days, veterinary advice should be sought.
She's not used to seeing me more than two days in a row.
You'll have your boy back in no more than two days.
Shouldn't be more than two days' work.
But without water, you won't survive more than two days out there.
More than two days, and I lose my job.

Alternatives:

shall not be used for more than two days
should not be used on more than two occasions
must not be used on more than two days
cannot be used on more than two days
is not to be used on more than two days

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shall not be used more than two days vs shall not be used on more than two days