Might~
[อาจจะ] + verb(+object)
1.I might go.
อาจจะไป
2.I might not go.
อาจจะไม่ไป
If~then~
[ถ้า] + assumption + conclusion
1.If you go, then I will go also.
ถ้าคุณไป ฉันก็จะไป
2.If it's possible to go, then I will go.
ถ้าไปได้จะไป
*Now a question: [I] is omitted from two places in the Thai sentence. Do you know which places?
If it's possible (for me) to go, then (I) will go.
ถ้า(ผม/ดิฉัน)ไปได้(ผม/ดิฉัน)จะไป