Cut and paste, use speech-to-text, and access keyboard settings.
INSTRUCTIONS & INFO
Select a text field to see the onscreen keyboard, and then select letters to type.
To copy text, select and hold the text, then select Select to select a single word or Select All to select everything. Expand or reduce the selection by selecting and dragging the end points as desired. When the desired text is highlighted, select Copy.
To paste, select and hold the desired location in the text field then select Paste.
Select the Shift key to type uppercase, or select the Shift key and slide to a letter.
Double-tap the Shift key for caps lock.
To enter numbers, punctuation, or symbols, select the 123 key. For more symbols, select the #+= key.
Note: To return to the alphabet keyboard, select the ABC key.
To use speech-to-text, select the Microphone key then speak the desired phrase.
To quickly end a sentence with a period and a space, double-tap the space bar.
As you write, QuickType uses predictive text to anticipate your next word. Select a word to choose it.
Accept a highlighted prediction by entering a space or punctuation.
Reject a suggestion by selecting your original word (shown as a QuickType option with quotation marks).
Note: If you reject the same suggestion a few times, iPhone stops suggesting it. If you see a word underlined in red, select it to see suggested corrections. If the word you want doesn't appear, type the correction.
To set options for typing, from the home screen select the Settings app > scroll to and select General > Keyboard > edit Keyboard settings as desired.