English verb conjugation
COULD SPILL

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

Affirmation

Simple form	V-ing form
I could spill you could spill she could spill we could spill you could spill they could spill	I could be spilling you could be spilling she 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 she 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 she 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 couldn't spill you couldn't spill she couldn't spill we couldn't spill you couldn't spill they couldn't spill	I couldn't be spilling you couldn't be spilling she couldn't be spilling we couldn't be spilling you couldn't be spilling they couldn't be spilling
Perfect	V-ing perfect
I couldn't have spilled, spilt you couldn't have spilled, spilt she couldn't have spilled, spilt we couldn't have spilled, spilt you couldn't have spilled, spilt they couldn't have spilled, spilt	I couldn't have been spilling you couldn't have been spilling she couldn't have been spilling we couldn't have been spilling you couldn't have been spilling they couldn't have been spilling

Interrogative form

Simple form	V-ing form
could I spill? could you spill? could she spill? could we spill? could you spill? could they spill?	could I be spilling? could you be spilling? could she 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 she 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 she 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
couldn't I spill? couldn't you spill? couldn't she spill? couldn't we spill? couldn't you spill? couldn't they spill?	couldn't I be spilling? couldn't you be spilling? couldn't she be spilling? couldn't we be spilling? couldn't you be spilling? couldn't they be spilling?
Perfect	V-ing perfect
couldn't I have spilled, spilt? couldn't you have spilled, spilt? couldn't she have spilled, spilt? couldn't we have spilled, spilt? couldn't you have spilled, spilt? couldn't they have spilled, spilt?	couldn't I have been spilling? couldn't you have been spilling? couldn't she have been spilling? couldn't we have been spilling? couldn't you have been spilling? couldn't they have been spilling?