Translation of "is not" into Swahili

This horse is not white.

Farasi hii si mweupe.

This is not a gratitude of the lips but of the soul.

Hii sio tu shukrani ya midomo bali ni ya nafsi.

However, further research has revealed at least five reasons why that is not so.

Hata hivyo, utafiti zaidi umeonyesha sababu tano hivi zinazoonyesha kwamba hivyo sivyo ilivyo.

The question is not whether we will experience seasons of adversity but how we will weather the storms.

Swala siyo kama tutapata uzoefu wa majira ya dhiki lakini ni jinsi tutakavyoshinda dhoruba.