Great
But notice, you have to use a verb in the first sentence like she is still alive.
In the second sentence, you need to write it that way : she promised me to come back alive.
In the second sentence, you used the past tense from come which is wrong cause there is nothing past here.
اول جملة لازم فعل
تانى جملة مفيهاش ماضي ده مستقبل وصياغة الجملة كتبتهالك فوق، يارب اكون قدرت افيدك
ربنا يوفقك