'That is not fair'
This instance would take place until an unless  you start to assume things by yourself  that your co-workers or your HR is being un fair to you and fair to others. Instead you can treat things in a right possible way and keep the correct approach towards it rather than just cribbing and complaining about it.

“Turn your emotions into conviction, not complaint. Reason with people and bring them to see your point of view,” according to Arora.

“It shows a huge negative impact on your behavior and attitude and makes you look like a person who always cribs,” added Mittal.

'There's nothing ill be able to do'
This creates an impression that you’re restricting yourself to one task and not interested to explore other opportunities. Instead you can give a piece of advice that it can be done like this and not like that. By just saying ‘I can’t do’ it will make you less capable at your work place and from the next instance you won’t be the go-to person they could think of.

”If, after trying everything, you really do believe that you cannot do anything more, it might be better to say, 'I've tried all of these options, but we're still not making it because of this (reason). Please suggest what else I can do to resolve this issue,” added Arora.
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