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it is difficult is the most popular phrase on the web.

it is tough 113,000,000 results on the web	it is difficult 192,000,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It is tough to compete with the greatest adventure in human history. Man, it is tough to find a football player who'll kiss me. But it is tough snow crust all right. For him it is tough to say this. It is tough terrain because forecasts are hard to make in both this and many other sectors. It is tough because it necessitates a reconsideration of the logistical organisation of our trading system and of the way we move and travel around. It is tough out there, people. It is tough when damp, brittle when dry.	At this stage, it is difficult for me to clarify the subject of these recommendations. The connection affords me great power, although it is difficult to maintain. When the King demands something it is difficult to refuse. In certain cases it is difficult resign his good fortune. When you are so close together, it is difficult to avoid friction. It seems that it is difficult to voice unadorned criticism of political friends. But it is difficult without knowing the person. In these circumstances, it is difficult for the Commission to provide any reasonable timetable.

it is tough

113,000,000 results on the web

it is difficult

192,000,000 results on the web

More popular!

It is tough to compete with the greatest adventure in human history.
Man, it is tough to find a football player who'll kiss me.
But it is tough snow crust all right.
For him it is tough to say this.
It is tough terrain because forecasts are hard to make in both this and many other sectors.
It is tough because it necessitates a reconsideration of the logistical organisation of our trading system and of the way we move and travel around.
It is tough out there, people.
It is tough when damp, brittle when dry.

At this stage, it is difficult for me to clarify the subject of these recommendations.
The connection affords me great power, although it is difficult to maintain.
When the King demands something it is difficult to refuse.
In certain cases it is difficult resign his good fortune.
When you are so close together, it is difficult to avoid friction.
It seems that it is difficult to voice unadorned criticism of political friends.
But it is difficult without knowing the person.
In these circumstances, it is difficult for the Commission to provide any reasonable timetable.