English verb conjugation
CAN MACHINE

Regular verb: machine - machined - machined

Affirmation

Simple form	V-ing form
I can machine you can machine he can machine we can machine you can machine they can machine	I can be machining you can be machining he can be machining we can be machining you can be machining they can be machining
Perfect	V-ing perfect
I can have machined you can have machined he can have machined we can have machined you can have machined they can have machined	I can have been machining you can have been machining he can have been machining we can have been machining you can have been machining they can have been machining

Negation

Simple form	V-ing form
I can't machine you can't machine he can't machine we can't machine you can't machine they can't machine	I can't be machining you can't be machining he can't be machining we can't be machining you can't be machining they can't be machining
Perfect	V-ing perfect
I can't have machined you can't have machined he can't have machined we can't have machined you can't have machined they can't have machined	I can't have been machining you can't have been machining he can't have been machining we can't have been machining you can't have been machining they can't have been machining

Interrogative form

Simple form	V-ing form
can I machine? can you machine? can he machine? can we machine? can you machine? can they machine?	can I be machining? can you be machining? can he be machining? can we be machining? can you be machining? can they be machining?
Perfect	V-ing perfect
can I have machined? can you have machined? can he have machined? can we have machined? can you have machined? can they have machined?	can I have been machining? can you have been machining? can he have been machining? can we have been machining? can you have been machining? can they have been machining?

Interro-negative form

Simple form	V-ing form
can't I machine? can't you machine? can't he machine? can't we machine? can't you machine? can't they machine?	can't I be machining? can't you be machining? can't he be machining? can't we be machining? can't you be machining? can't they be machining?
Perfect	V-ing perfect
can't I have machined? can't you have machined? can't he have machined? can't we have machined? can't you have machined? can't they have machined?	can't I have been machining? can't you have been machining? can't he have been machining? can't we have been machining? can't you have been machining? can't they have been machining?