How many ways can you spell 2?
Likewise, there is only one way to spell too and perhaps two ways to spell two (the other being 2). So, the only way to write that sentence correctly would be to include all three, or write the transcription, [tu].
Is really spelled with one L or two?
Both spellings are correct; Americans favor canceled (one L), while cancelled (two Ls) is preferred in British English and other dialects.
How do you spell double letters?
What is the rule for double l?
For words ending in a single “l” after a single vowel, double the “l” before adding a suffix, regardless of accent. e.g. cancelled, traveller, signalling, metallic. If a word of more than one syllable ends in a “t”, preceded by a single vowel, and has the accent on the last syllable, then double the final consonant.