Page 500 - Basic Japanese

-tara (-dara), they end in -tari (-dari). For example:

Some sentences contain one alternative form; others

contain several. The most frequent type of sentence using
the alternative contains two. The last alternative, or the only

one, is always followed by some form of the verb suru
‘does’—working as a kind of dummy auxiliary.

The meaning of the alternative is either (1) actions in
alternation (now doing this, now doing that), (2)
simultaneous actions (doing this and that at the same time),

or (3) representative or typical actions (doing things like