English verb conjugation
CAN EYEWITNESS

Regular verb: eyewitness - eyewitnessed - eyewitnessed

Affirmation

Simple form	V-ing form
I can eyewitness you can eyewitness he can eyewitness we can eyewitness you can eyewitness they can eyewitness	I can be eyewitnessing you can be eyewitnessing he can be eyewitnessing we can be eyewitnessing you can be eyewitnessing they can be eyewitnessing
Perfect	V-ing perfect
I can have eyewitnessed you can have eyewitnessed he can have eyewitnessed we can have eyewitnessed you can have eyewitnessed they can have eyewitnessed	I can have been eyewitnessing you can have been eyewitnessing he can have been eyewitnessing we can have been eyewitnessing you can have been eyewitnessing they can have been eyewitnessing

Negation

Simple form	V-ing form
I cannot eyewitness you cannot eyewitness he cannot eyewitness we cannot eyewitness you cannot eyewitness they cannot eyewitness	I cannot be eyewitnessing you cannot be eyewitnessing he cannot be eyewitnessing we cannot be eyewitnessing you cannot be eyewitnessing they cannot be eyewitnessing
Perfect	V-ing perfect
I cannot have eyewitnessed you cannot have eyewitnessed he cannot have eyewitnessed we cannot have eyewitnessed you cannot have eyewitnessed they cannot have eyewitnessed	I cannot have been eyewitnessing you cannot have been eyewitnessing he cannot have been eyewitnessing we cannot have been eyewitnessing you cannot have been eyewitnessing they cannot have been eyewitnessing

Interrogative form

Simple form	V-ing form
can I eyewitness? can you eyewitness? can he eyewitness? can we eyewitness? can you eyewitness? can they eyewitness?	can I be eyewitnessing? can you be eyewitnessing? can he be eyewitnessing? can we be eyewitnessing? can you be eyewitnessing? can they be eyewitnessing?
Perfect	V-ing perfect
can I have eyewitnessed? can you have eyewitnessed? can he have eyewitnessed? can we have eyewitnessed? can you have eyewitnessed? can they have eyewitnessed?	can I have been eyewitnessing? can you have been eyewitnessing? can he have been eyewitnessing? can we have been eyewitnessing? can you have been eyewitnessing? can they have been eyewitnessing?

Interro-negative form

Simple form	V-ing form
can I not eyewitness? can you not eyewitness? can he not eyewitness? can we not eyewitness? can you not eyewitness? can they not eyewitness?	can I not be eyewitnessing? can you not be eyewitnessing? can he not be eyewitnessing? can we not be eyewitnessing? can you not be eyewitnessing? can they not be eyewitnessing?
Perfect	V-ing perfect
can I not have eyewitnessed? can you not have eyewitnessed? can he not have eyewitnessed? can we not have eyewitnessed? can you not have eyewitnessed? can they not have eyewitnessed?	can I not have been eyewitnessing? can you not have been eyewitnessing? can he not have been eyewitnessing? can we not have been eyewitnessing? can you not have been eyewitnessing? can they not have been eyewitnessing?