Correct spelling, explanation: it’s worth noting that both log in to and log into are commonly used, and the choice between them often comes down to personal preference and style conventions. Log in to is a phrase used to indicate the action of entering a secure system, website, or application by providing appropriate credentials such as a username and password. On the other hand, the phrase log into is a result of linguistic evolution and the natural development of language to meet the needs of modern communication.

Definition of log into:
phrase, entering a secure digital system, website, or application by providing the necessary credentials
He used his credentials to log into the online banking portal and check his account balance.
She couldn’t remember her password, so she had to reset it before she could log into her social media account.

Collocations with log into:
Some most commonly used collocations include:
1. Log into the system: refers to accessing a computer or software system.
Employees are required to log into the system to record their work hours.
2. Log into the app: indicates accessing a mobile application by entering credentials.
I often log into the app to keep track of my fitness goals.
3. Log into the network: describes accessing a secure network, often in an office or organizational context.
Staff members need to log into the network to access shared files.
4. Log into your account dashboard: refers to accessing the personalized area or interface of an online account.
Customers can log into their account dashboard to manage subscriptions and preferences.

Correct spelling, explanation: log in to is a grammatically accurate and widely used phrase to indicate the action of entering a secure system, website, or application by providing appropriate credentials such as a username and password. comes from the evolution of language and the way prepositions and verbs combine to express specific actions. Log in is a verb phrase that originated from computer and technology terminology. The preposition to in log in to indicates the destination or purpose of the action. Remember that log into is correct as well.