It's difficult to give exact advice because each case is different.
In addition, they find it difficult to give artistic form.
In a group, I find it more difficult to give my opinion.
En groupe, je trouve plus difficile de donner mon avis.
So, it is difficult to give a precise answer about the timeframe.
Il est donc difficile de donner une réponse précise quant aux délais.
Unfortunately it is very difficult to give definitive advice on this.
Malheureusement, il est très difficile de donner des conseils en ce sens.
It would thus be difficult to give a one-size-fits-all tip.
Il serait donc difficile de donner un conseil applicable à tous.
However, it is difficult to give an exact estimate.
Cependant, il est difficile de donner une estimation exacte.
It is, therefore, difficult to give exact time frames.
Il est donc difficile de donner des délais précis.
It is therefore difficult to give accurate estimations.
Il est donc difficile de donner des estimations précises.
But I find it difficult to give definitions.
Mais je trouve difficile de donner des définitions.
And without beyond, it is difficult to give meaning to creation.
Et sans au-delà, il est difficile de donner un sens à la création.
As a result it is difficult to give a price which can be applied to any project.
Il nous est donc difficile de donner un prix applicable à chaque projet.
It's a bit difficult to give the percentages.
C'est difficile de donner des pourcentages.