Present simple
Habits, facts, and how things usually are. To say no or ask, add do or does: I don't spit back up, he doesn't spit back up.
- I / you / we / they spit back up
- he / she / it spits back up
régurgiter
Irregular verb, phrasal verb.
Phrasal verb: back up
Only spit changes; back up stays the same: spat back up, spat back up.
Two forms
The tables show spat back up. In American speech you also hear spit back up.
In speech, the helping verbs shorten: I’m, he’s, we’re, I’ve, I’ll, I’d.
Enough to talk about now, the past, and your plans, and to give instructions.
Habits, facts, and how things usually are. To say no or ask, add do or does: I don't spit back up, he doesn't spit back up.
What is happening now, and plans already arranged: we’re leaving tomorrow.
A finished action at a past time: yesterday, in 2020. To say no or ask, add did: I didn't spit back up.
Plans and intentions, and what you can see coming: it’s going to rain.
Orders, advice, and instructions. Let’s suggests doing it together. To say no: don't spit back up.