Translation for "it so" to french

It so

• c'est ca
• si

Translation examples

si

and if so
et, si oui

Why is it that they feel so tired and that they are sick so often?
Pourquoi se sentent-ils si fatigués et tombent-ils si souvent malades?

That is precisely what makes international terrorists so dangerous and so threatening.
C'est précisément ce qui les rend si dangereux et si menaçants.

69. Rarely had so solemn a promise been so shamefully betrayed.
69. Rarement promesse si solennelle aura été si honteusement trahie.

If so, by whom?
Si oui, par qui?

It's so... So...
C'était si... si...