First - as you see in the screenshot - you can create a table with mouse and only a few keyboard typing in the "Design" tab.
And the second one by pure SQL statement.
A combo box with databases attached. Select one and the table will be created in this schema.
Name of new table. It must be given.
Use "Add" and "Remove" buttons to create columns for this table. Every column must have a table-unique name, chosen data type (prepared combo box), optional NOT NULL constraint, and optional DEFAULT value.
Consult Sqlite documentation for data type, NOT NULL, and DEFAULT handling specials, please.
Press this button to create table. The result of this operation is shown in the text area below.
You can write full featured SQL CREATE TABLE statement here. A helper template is prepared for you. Every time you open this tab you will be asked to recreate a new SQL statement from the GUI settings in the first tab.