English verb conjugation
COULD ESCALATE

Regular verb: escalate - escalated - escalated

Affirmation

Simple form	V-ing form
I could escalate you could escalate she could escalate we could escalate you could escalate they could escalate	I could be escalating you could be escalating she could be escalating we could be escalating you could be escalating they could be escalating
Perfect	V-ing perfect
I could have escalated you could have escalated she could have escalated we could have escalated you could have escalated they could have escalated	I could have been escalating you could have been escalating she could have been escalating we could have been escalating you could have been escalating they could have been escalating

Negation

Simple form	V-ing form
I couldn't escalate you couldn't escalate she couldn't escalate we couldn't escalate you couldn't escalate they couldn't escalate	I couldn't be escalating you couldn't be escalating she couldn't be escalating we couldn't be escalating you couldn't be escalating they couldn't be escalating
Perfect	V-ing perfect
I couldn't have escalated you couldn't have escalated she couldn't have escalated we couldn't have escalated you couldn't have escalated they couldn't have escalated	I couldn't have been escalating you couldn't have been escalating she couldn't have been escalating we couldn't have been escalating you couldn't have been escalating they couldn't have been escalating

Interrogative form

Simple form	V-ing form
could I escalate? could you escalate? could she escalate? could we escalate? could you escalate? could they escalate?	could I be escalating? could you be escalating? could she be escalating? could we be escalating? could you be escalating? could they be escalating?
Perfect	V-ing perfect
could I have escalated? could you have escalated? could she have escalated? could we have escalated? could you have escalated? could they have escalated?	could I have been escalating? could you have been escalating? could she have been escalating? could we have been escalating? could you have been escalating? could they have been escalating?

Interro-negative form

Simple form	V-ing form
couldn't I escalate? couldn't you escalate? couldn't she escalate? couldn't we escalate? couldn't you escalate? couldn't they escalate?	couldn't I be escalating? couldn't you be escalating? couldn't she be escalating? couldn't we be escalating? couldn't you be escalating? couldn't they be escalating?
Perfect	V-ing perfect
couldn't I have escalated? couldn't you have escalated? couldn't she have escalated? couldn't we have escalated? couldn't you have escalated? couldn't they have escalated?	couldn't I have been escalating? couldn't you have been escalating? couldn't she have been escalating? couldn't we have been escalating? couldn't you have been escalating? couldn't they have been escalating?