This is the 3588th most frequent Russian word.
смогу
"Смогу" means "I will be able to."
In this future-oriented sentence, 'смогу' is used to express ability or capacity to perform an action, conditioned upon external help.
Если ты поможешь мне, я смогу убрать всю комнату.
If you help me, I will be able to clean the entire room.
Here, 'смогу' is in the negative form ('не смогу'), indicating inability or lack of capacity to perform the action in a future context.
Я не смогу прийти на встречу, потому что у меня важное дело.
I will not be able to come to the meeting because I have an important matter.
In this sentence, 'смогу' is used interrogatively to pose a question about potential ability or achievement in the future.