English verb conjugation
COULD SPILL

Irregular verb: spill - spilled, spilt - spilled, spilt

Affirmation

Simple form	V-ing form
I could spill you could spill he could spill we could spill you could spill they could spill	I could be spilling you could be spilling he could be spilling we could be spilling you could be spilling they could be spilling
Perfect	V-ing perfect
I could have spilled, spilt you could have spilled, spilt he could have spilled, spilt we could have spilled, spilt you could have spilled, spilt they could have spilled, spilt	I could have been spilling you could have been spilling he could have been spilling we could have been spilling you could have been spilling they could have been spilling

Negation

Simple form	V-ing form
I could not spill you could not spill he could not spill we could not spill you could not spill they could not spill	I could not be spilling you could not be spilling he could not be spilling we could not be spilling you could not be spilling they could not be spilling
Perfect	V-ing perfect
I could not have spilled, spilt you could not have spilled, spilt he could not have spilled, spilt we could not have spilled, spilt you could not have spilled, spilt they could not have spilled, spilt	I could not have been spilling you could not have been spilling he could not have been spilling we could not have been spilling you could not have been spilling they could not have been spilling

Interrogative form

Simple form	V-ing form
could I spill? could you spill? could he spill? could we spill? could you spill? could they spill?	could I be spilling? could you be spilling? could he be spilling? could we be spilling? could you be spilling? could they be spilling?
Perfect	V-ing perfect
could I have spilled, spilt? could you have spilled, spilt? could he have spilled, spilt? could we have spilled, spilt? could you have spilled, spilt? could they have spilled, spilt?	could I have been spilling? could you have been spilling? could he have been spilling? could we have been spilling? could you have been spilling? could they have been spilling?

Interro-negative form

Simple form	V-ing form
could I not spill? could you not spill? could he not spill? could we not spill? could you not spill? could they not spill?	could I not be spilling? could you not be spilling? could he not be spilling? could we not be spilling? could you not be spilling? could they not be spilling?
Perfect	V-ing perfect
could I not have spilled, spilt? could you not have spilled, spilt? could he not have spilled, spilt? could we not have spilled, spilt? could you not have spilled, spilt? could they not have spilled, spilt?	could I not have been spilling? could you not have been spilling? could he not have been spilling? could we not have been spilling? could you not have been spilling? could they not have been spilling?