English verb conjugation
COULD SECURE

Regular verb: secure - secured - secured

Affirmation

Simple form	V-ing form
I could secure you could secure he could secure we could secure you could secure they could secure	I could be securing you could be securing he could be securing we could be securing you could be securing they could be securing
Perfect	V-ing perfect
I could have secured you could have secured he could have secured we could have secured you could have secured they could have secured	I could have been securing you could have been securing he could have been securing we could have been securing you could have been securing they could have been securing

Negation

Simple form	V-ing form
I could not secure you could not secure he could not secure we could not secure you could not secure they could not secure	I could not be securing you could not be securing he could not be securing we could not be securing you could not be securing they could not be securing
Perfect	V-ing perfect
I could not have secured you could not have secured he could not have secured we could not have secured you could not have secured they could not have secured	I could not have been securing you could not have been securing he could not have been securing we could not have been securing you could not have been securing they could not have been securing

Interrogative form

Simple form	V-ing form
could I secure? could you secure? could he secure? could we secure? could you secure? could they secure?	could I be securing? could you be securing? could he be securing? could we be securing? could you be securing? could they be securing?
Perfect	V-ing perfect
could I have secured? could you have secured? could he have secured? could we have secured? could you have secured? could they have secured?	could I have been securing? could you have been securing? could he have been securing? could we have been securing? could you have been securing? could they have been securing?

Interro-negative form

Simple form	V-ing form
could I not secure? could you not secure? could he not secure? could we not secure? could you not secure? could they not secure?	could I not be securing? could you not be securing? could he not be securing? could we not be securing? could you not be securing? could they not be securing?
Perfect	V-ing perfect
could I not have secured? could you not have secured? could he not have secured? could we not have secured? could you not have secured? could they not have secured?	could I not have been securing? could you not have been securing? could he not have been securing? could we not have been securing? could you not have been securing? could they not have been securing?