What's different between down and downward? And When we use them? What different between down and downward? And When we use them?

Which one correct? Why we need six adapters? or Why do we need six adapters?

About English Gramma Where and which will company calibrate the tools? Where and which company will calibrate the tools? Which one is correct?

What does it mean "No pun intended" What does it mean "No pun intended" and when we use this is phrase?

When we use word efect,influence,impact. I know this word but which cases we can use this words.

different between "if" and "wether" Which cases we use "if" and "whether"

different between "if" and "whether" When we use if and whether?

How to call wire condition I have wire with stripping condition. I don't know how call state wire I mean end of insulation damaging burnt and also (is it tattered correct?)I mean, when you striped wires, end of insulation is not striped clear some of pieces of insulation stayed on cable. I do not know which words use.

We would only hold on to let go (She want to hold on or let go him?) Please expalin this text But the night was warm We were bold and young All around the wind blows We would only hold on to let go