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 cannot presignal you cannot presignal he cannot presignal we cannot presignal you cannot presignal they cannot presignal	I cannot be presignaling you cannot be presignaling he cannot be presignaling we cannot be presignaling you cannot be presignaling they cannot be presignaling
Perfect	V-ing perfect
I cannot have presignaled you cannot have presignaled he cannot have presignaled we cannot have presignaled you cannot have presignaled they cannot have presignaled	I cannot have been presignaling you cannot have been presignaling he cannot have been presignaling we cannot have been presignaling you cannot have been presignaling they cannot 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 I not presignal? can you not presignal? can he not presignal? can we not presignal? can you not presignal? can they not presignal?	can I not be presignaling? can you not be presignaling? can he not be presignaling? can we not be presignaling? can you not be presignaling? can they not be presignaling?
Perfect	V-ing perfect
can I not have presignaled? can you not have presignaled? can he not have presignaled? can we not have presignaled? can you not have presignaled? can they not have presignaled?	can I not have been presignaling? can you not have been presignaling? can he not have been presignaling? can we not have been presignaling? can you not have been presignaling? can they not have been presignaling?