English verb conjugation
CAN MODULATE

Regular verb: modulate - modulated - modulated

Affirmation

Simple form	V-ing form
I can modulate you can modulate he can modulate we can modulate you can modulate they can modulate	I can be modulating you can be modulating he can be modulating we can be modulating you can be modulating they can be modulating
Perfect	V-ing perfect
I can have modulated you can have modulated he can have modulated we can have modulated you can have modulated they can have modulated	I can have been modulating you can have been modulating he can have been modulating we can have been modulating you can have been modulating they can have been modulating

Negation

Simple form	V-ing form
I cannot modulate you cannot modulate he cannot modulate we cannot modulate you cannot modulate they cannot modulate	I cannot be modulating you cannot be modulating he cannot be modulating we cannot be modulating you cannot be modulating they cannot be modulating
Perfect	V-ing perfect
I cannot have modulated you cannot have modulated he cannot have modulated we cannot have modulated you cannot have modulated they cannot have modulated	I cannot have been modulating you cannot have been modulating he cannot have been modulating we cannot have been modulating you cannot have been modulating they cannot have been modulating

Interrogative form

Simple form	V-ing form
can I modulate? can you modulate? can he modulate? can we modulate? can you modulate? can they modulate?	can I be modulating? can you be modulating? can he be modulating? can we be modulating? can you be modulating? can they be modulating?
Perfect	V-ing perfect
can I have modulated? can you have modulated? can he have modulated? can we have modulated? can you have modulated? can they have modulated?	can I have been modulating? can you have been modulating? can he have been modulating? can we have been modulating? can you have been modulating? can they have been modulating?

Interro-negative form

Simple form	V-ing form
can I not modulate? can you not modulate? can he not modulate? can we not modulate? can you not modulate? can they not modulate?	can I not be modulating? can you not be modulating? can he not be modulating? can we not be modulating? can you not be modulating? can they not be modulating?
Perfect	V-ing perfect
can I not have modulated? can you not have modulated? can he not have modulated? can we not have modulated? can you not have modulated? can they not have modulated?	can I not have been modulating? can you not have been modulating? can he not have been modulating? can we not have been modulating? can you not have been modulating? can they not have been modulating?