English verb conjugation
CAN APPAL

Regular verb: appal - appaled - appaled

Affirmation

Simple form	V-ing form
I can appal you can appal he can appal we can appal you can appal they can appal	I can be appaling you can be appaling he can be appaling we can be appaling you can be appaling they can be appaling
Perfect	V-ing perfect
I can have appaled you can have appaled he can have appaled we can have appaled you can have appaled they can have appaled	I can have been appaling you can have been appaling he can have been appaling we can have been appaling you can have been appaling they can have been appaling

Negation

Simple form	V-ing form
I cannot appal you cannot appal he cannot appal we cannot appal you cannot appal they cannot appal	I cannot be appaling you cannot be appaling he cannot be appaling we cannot be appaling you cannot be appaling they cannot be appaling
Perfect	V-ing perfect
I cannot have appaled you cannot have appaled he cannot have appaled we cannot have appaled you cannot have appaled they cannot have appaled	I cannot have been appaling you cannot have been appaling he cannot have been appaling we cannot have been appaling you cannot have been appaling they cannot have been appaling

Interrogative form

Simple form	V-ing form
can I appal? can you appal? can he appal? can we appal? can you appal? can they appal?	can I be appaling? can you be appaling? can he be appaling? can we be appaling? can you be appaling? can they be appaling?
Perfect	V-ing perfect
can I have appaled? can you have appaled? can he have appaled? can we have appaled? can you have appaled? can they have appaled?	can I have been appaling? can you have been appaling? can he have been appaling? can we have been appaling? can you have been appaling? can they have been appaling?

Interro-negative form

Simple form	V-ing form
can I not appal? can you not appal? can he not appal? can we not appal? can you not appal? can they not appal?	can I not be appaling? can you not be appaling? can he not be appaling? can we not be appaling? can you not be appaling? can they not be appaling?
Perfect	V-ing perfect
can I not have appaled? can you not have appaled? can he not have appaled? can we not have appaled? can you not have appaled? can they not have appaled?	can I not have been appaling? can you not have been appaling? can he not have been appaling? can we not have been appaling? can you not have been appaling? can they not have been appaling?