English verb conjugation
CAN PRESIGNAL

Regular verb: presignal - presignaled - presignaled

Affirmation

Simple form	V-ing form
I can presignal you can presignal he can presignal we can presignal you can presignal they can presignal	I can be presignaling you can be presignaling he can be presignaling we can be presignaling you can be presignaling they can be presignaling
Perfect	V-ing perfect
I can have presignaled you can have presignaled he can have presignaled we can have presignaled you can have presignaled they can have presignaled	I can have been presignaling you can have been presignaling he can have been presignaling we can have been presignaling you can have been presignaling they can have been presignaling

Negation

Simple form	V-ing form
I can't presignal you can't presignal he can't presignal we can't presignal you can't presignal they can't presignal	I can't be presignaling you can't be presignaling he can't be presignaling we can't be presignaling you can't be presignaling they can't be presignaling
Perfect	V-ing perfect
I can't have presignaled you can't have presignaled he can't have presignaled we can't have presignaled you can't have presignaled they can't have presignaled	I can't have been presignaling you can't have been presignaling he can't have been presignaling we can't have been presignaling you can't have been presignaling they can't have been presignaling

Interrogative form

Simple form	V-ing form
can I presignal? can you presignal? can he presignal? can we presignal? can you presignal? can they presignal?	can I be presignaling? can you be presignaling? can he be presignaling? can we be presignaling? can you be presignaling? can they be presignaling?
Perfect	V-ing perfect
can I have presignaled? can you have presignaled? can he have presignaled? can we have presignaled? can you have presignaled? can they have presignaled?	can I have been presignaling? can you have been presignaling? can he have been presignaling? can we have been presignaling? can you have been presignaling? can they have been presignaling?

Interro-negative form

Simple form	V-ing form
can't I presignal? can't you presignal? can't he presignal? can't we presignal? can't you presignal? can't they presignal?	can't I be presignaling? can't you be presignaling? can't he be presignaling? can't we be presignaling? can't you be presignaling? can't they be presignaling?
Perfect	V-ing perfect
can't I have presignaled? can't you have presignaled? can't he have presignaled? can't we have presignaled? can't you have presignaled? can't they have presignaled?	can't I have been presignaling? can't you have been presignaling? can't he have been presignaling? can't we have been presignaling? can't you have been presignaling? can't they have been presignaling?